Ioannis Tsivintzelis

Assistant Professor

 

Laboratory of Physical Chemistry

Department of Chemical Engineering

Aristotle University of Thessaloniki

 

 

 

 

 

Home / Publications

 

 

Book Chapters

 

 

Peer Review Journals

 

 

Conference Proceedings

 

 

 

 

Book Chapters:

 

4. A.I. Papadopoulos, I Tsivintzelis, P. Linke, P. Seferlis Computer Aided Molecular Design: Fundamentals, Methods and Applications, in Elsevier Reference Module in Chemistry, Molecular Sciences and Chemical Engineering, Elsevier 2018 https://doi.org/10.1016/B978-0-12-409547-2.14342-2

3. I. Tsivintzelis, C. Panayiotou Molecular Thermodynamics of Solutions in Enthalpy and Internal Energy: Liquids, Solutions and Vapours, Edited by Emmerich Wilhelm and Trevor Letcher, Royal Society of Chemistry, 2018.

2. I. Tsivintzelis, C. Panayiotou Equation-of-State Approach in Polymer Solution and Polymer Foaming Thermodynamics in Biofoams: Science and Applications of Bio-Based Cellular and Porous Materials, Edited by Salvatore Iannace, Chul B. Park, CRC Press, Boca Raton, London, New York, 2016.

1. I. Tsivintzelis, C. Panayiotou Molecular Thermodynamics of Hydrogen-Bonded Systems, in Handbook of Surface and Colloid Chemistry, Fourth Edition, Edited by K. S. Birdi, CRC Press, Boca Raton, London, New York, 2015.

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Peer Review Journals:

2021

71. Tzirakis F, Papadopoulos A.I., Seferlis P, Tsivintzelis I, CO2 Solubility in Diethylenetriamine (DETA) and Triethylenetetramine (TETA) aqueous mixtures: Experimental Investigation and Correlation Using the CPA Equation of State, (2021) Chemical Thermodynamics and Thermal Analysis, Vol 3-4, 100017 https://doi.org/10.1016/j.ctta.2021.100017

70. Tzirakis, F., Tsivintzelis, I., Papadopoulos, A.I., Seferlis, P. Experimental investigation of phase change amine solutions used in CO2 capture applications: Systems with dimethylcyclohexylamine (DMCA) and Ncyclohexyl-1,3-propanediamine (CHAP) or 3-methylaminopropylamine (MAPA), (2021) International Journal of Greenhouse Gas Control, 2021, vol 109, Article 103353 https://doi.org/10.1016/j.ijggc.2021.103353

69. Arampatzis A.S., Kontogiannopoulos K.N., Theodoridis K., Aggelidou E., Rat A., Willems A., Tsivintzelis I., Papageorgiou V.P., Kritis A., Assimopoulou A.N. Electrospun wound dressings containing bioactive natural products: physicochemical characterization and biological assessment, (2021) Biomaterials Research, 25, Article number: 23 https://doi.org/10.1186/s40824-021-00223-9

68. Arampatzis A.S., Giannakoula K., Kontogiannopoulos K.N., Theodoridis K., Aggelidou E., Rat A., Kampasakali E., Willems A., Christofilos D., Kritis A., Papageorgiou V.P., Tsivintzelis I., Assimopoulou A.N. Novel electrospun poly-hydroxybutyrate scaffolds as carriers for the wound healing agents alkannins and shikonins, (2021) Regenerative Biomaterials, 8 (3), 1-16. https://doi.org/10.1093/rb/rbab011

67. Tsivintzelis I., Karakatsani E., Kontogeorgis G.M. Costa Tsonopoulos his legacy and some personal reflections on cubic equations of state and beyond, (2021) Fluid Phase Equilibria, 533, 112895.

66. Papadopoulos A.I., Perdomo F.A., Tzirakis F., Shavalievac G., Tsivintzelis I., Kazepidis P., Nessi E., Papadokonstantakis S., Seferlis P., Galindo A., Jackson G., Adjiman C.S., Molecular Engineering of Sustainable Phase-change Solvents: From Digital Design to Scaling-up for CO2 Capture, (2020) Chemical Engineering Journal, vol 420, Part 2, Article 127624 https://doi.org/10.1016/j.cej.2020.127624

65. Tsioptsias C., Leontiadis K., Tzimpilis E., Tsivintzelis I., Polypropylene nanocomposite fibers: A review of current trends and new developments, (2021) Journal of Plastic Film & Sheeting, 37(3), pp. 283-311, https://doi.org/10.1177/8756087920972146

 

2020

64. Kontogeorgis G.M., Liang X., Arya A., Tsivintzelis I., Equations of State in Three Centuries. Are we closer to arriving to a single model for all applications? (2020) Chemical Engineering Science: X, 7, 100060.

63. Tsivintzelis, I., Ali, S., Kontogeorgis, G.M., Modeling systems relevant to the biodiesel production using the CPA equation of state. Part 2. Systems with supercritical CO2, (2020) Fluid Phase Equilibria, 504, 112337.

 

2019

62. Leontiadis K, Tzimpilis E., Aslanidou D., Tsivintzelis I., (2019) Solubility of CO2 in 3-amino-1-propanol and in N-methyldiethanolamine aqueous solutions: Experimental investigation and correlation using the CPA equation of state, Fluid Phase Equilibria, 500, 112254.

61. Papadopoulos A.I., Tzirakis F., Tsivintzelis I., Seferlis P., (2019) Phase-Change Solvents and Processes for Postcombustion CO2 Capture: A Detailed Review, Industrial and Engineering Chemistry Research, 58 (13), pp 50885111. DOI: 10.1021/acs.iecr.8b06279

60. Tzirakis, F., Tsivintzelis, I., Papadopoulos, A.I., Seferlis, P. (2019) Experimental measurement and assessment of equilibrium behaviour for phase change solvents used in CO2 capture, Chemical Engineering Science, 199, pp. 20-27.

 

2018

59. Tsivintzelis, I., Bjørner, M.G., Kontogeorgis, G.M. Recent advances with association models for practical applications, (2018) Molecular Physics, 116 (15-16), pp. 1921-1944. DOI: 10.1080/00268976.2018.1465604

 

2017

58.  Tsivintzelis, I., Kontogeorgis, G.M., Panayiotou, C., Dimerization of Carboxylic Acids: An Equation of State Approach (2017) Journal of Physical Chemistry B, 121 (9), pp. 2153-2163.

57. Baklavaridis A., Tsivintzelis I., Zuburtikudis I., Panayiotou C., Preparation of porous poly(L-lactic acid)-co-(trimethylene-carbonate) structures using supercritical CO2 as antisolvent and as foaming agent (2017) Polymer Engineering & Science, 57 (9) 1005-1015, DOI: 10.1002/pen.24478.

 

  2016

56. Tsivintzelis, I., Ali, S., Kontogeorgis, G.M. Modeling systems relevant to the biodiesel production using the CPA equation of state, (2016) Fluid Phase Equilibria, 430, pp. 75-92. [Abstract and full text]

55.  Tsivintzelis, I., Sanxaridou, G., Pavlidou, E., Panayiotou, C., Foaming of polymers with supercritical fluids: A thermodynamic investigation, (2016) Journal of Supercritical Fluids, 110, pp. 240-250. [Abstract and full text]

54.  Dimopoulou M. , Tsivintzelis I., Ritzoulis C. , Panayiotou C., Thermodynamics of a food macromolecular assembly: the case of okra mucilage, RSC Advances, 2016,6, 20916-20925. [Abstract and full text]

53.  Awan, J.A., Coquelet, C., Tsivintzelis, I., Kontogeorgis, G., Phase Equilibrium Measurements and Modeling of 1-Propanethiol +1-Butanethiol + CH4 in Methane Ternary System at 303, 336, and 368 K and Pressure up to 9 MPa, (2016) Journal of Chemical and Engineering Data, 61 (1), pp. 41-44. [Abstract and full text]

52.  Tsivintzelis I., Kontogeorgis G.M., Modelling phase equilibria for acid gas mixtures using the CPA equation of state. Part VI. Multicomponent mixtures with glycols relevant to oil and gas and to liquid or supercritical CO2 transport applications, (2016) Journal of Chemical Thermodynamics, 93, pp. 305319. [Abstract and full text]

51.  Liang X, Maribo-Mogensen B., Tsivintzelis I., Kontogeorgis G.M., A comment on water's structure using monomer fraction data and theories, (2016) Fluid Phase Equilibria, 407, pp. 2-6. [Abstract and full text]

 

2015

50.     Panayiotou, C., Tsivintzelis, I., Aslanidou, D., Hatzimanikatis, V., Solvation quantities from a COSMO-RS equation of state, (2015) Journal of Chemical Thermodynamics, 90, pp. 294-309. [Abstract and full text]

49.     Tsivintzelis, I., Kontogeorgis, G.M. Modelling phase equilibria for acid gas mixtures using the CPA equation of state. Part V: Multicomponent mixtures containing CO2 and alcohols, (2015) Journal of Supercritical Fluids, 104, pp 29-39. [Abstract and full text]

48.     Tsivintzelis, I., Ali, S., Kontogeorgis, G.M. Modeling phase equilibria for acid gas mixtures using the CPA equation of state. Part IV. Applications to mixtures of CO2 with alkanes, (2015) Fluid Phase Equilibria, 397, pp. 1-17. [Abstract and full text]

     

2014

47.     Liang X., Tsivintzelis I., Kontogeorgis G.M., Modeling Water Containing Systems with the Simplified PC-SAFT and CPA Equations of State, (2014) Industrial and Engineering Chemistry Research, 53 (37), pp 1449314507. [Abstract and full text]

46.     Arya A., Maribo-Mogensen B., Tsivintzelis I., Kontogeorgis G.M., Process Design of Industrial Triethylene Glycol Processes Using the Cubic-Plus-Association (CPA) Equation of State, (2014), Industrial and Engineering Chemistry Research, 53 (29), pp 1176611778 [Abstract and full text]

45.     Tsivintzelis I., Shahid A., Kontogeorgis G.M., Modeling Modeling phase equilibria for acid gas mixtures using the CPA equation of state. Part 3. Applications relevant to liquid or supercritical CO2 transport, (2014) Journal of Chemical & Engineering Data, 59 (10), pp 29552972 [Abstract and full text]

44.     Tsivintzelis I., Kontogeorgis G.M., On the predictive capabilities of CPA for applications in the chemical industry: Multicomponent mixtures containing methyl-methacrylate, dimethyl-ether or acetic acid, (2014) Chemical Engineering Research and Design, 92 (12), pp 1947-1969. [Abstract and full text]

43.     Tsivintzelis I., Bøgh D., Karakatsani E., Kontogeorgis G., The role of monomer fraction data in association theoriescan we improve the performance for phase equilibrium calculations? (2014) Fluid Phase Equilibria, 365, pp. 112-122. [Abstract and full text]

 

2013

42.     Tsivintzelis I, Panayiotou C, Designing Issues in Polymer Foaming with Supercritical Fluids, (2013) Macromolecular Symposia, 331-332 (1), pp. 109-114. [Abstract and full text]

41.     Tsivintzelis, I., Musko, N.E., Baiker, A., Grunwaldt, J.-D., Kontogeorgis, G.M., Experimental determination and modeling of the phase behavior for the direct synthesis of dimethyl carbonate from methanol and carbon dioxide, (2013) Journal of Supercritical Fluids, 84, pp. 155-163. [Abstract and full text]

40.     Awan, J.A., Kontogeorgis, G.M., Tsivintzelis, I., Coquelet, C., Vapor-liquid-liquid equilibrium measurements and modeling of ethanethiol + methane + water, 1-propanethiol + methane + water and 1-butanethiol + methane + water ternary systems at 303, 335, and 365 K and pressure up to 9 MPa, (2013) Industrial and Engineering Chemistry Research, 52 (41), pp. 14698-14705. [Abstract and full text]

39.     Tsimpliaraki, A., Tsivintzelis, I., Marras, S.I., Zuburtikudis, I., Panayiotou, C., Foaming of PCL/clay nanocomposites with supercritical CO2 mixtures: The effect of nanocomposite fabrication route on the clay dispersion and the final porous structure, (2013) Journal of Supercritical Fluids, 81, pp. 86-91. [Abstract and full text]

 

2012

38.     Maia, F.M., Tsivintzelis, I., Rodriguez, O., Macedo, E.A., Kontogeorgis, G.M., Equation of state modelling of systems with ionic liquids: Literature review and application with the Cubic Plus Association (CPA) model, (2012) Fluid Phase Equilibria, 332, pp. 128-143. [Abstract and full text]

37.     Tsivintzelis, I., Kontogeorgis, G.M., Capabilities and limitations of an association theory for chemicals in liquid or supercritical solvents, (2012) Industrial and Engineering Chemistry Research, 51 (41), pp. 13496-13517. [Abstract and full text]

36.     Awan, J.A., Tsivintzelis, I., Valtz, A., Coquelet, C., Kontogeorgis, G.M., Vapor-liquid-liquid equilibrium measurements and modeling of the methanethiol + methane + water ternary system at 304, 334, and 364 K, (2012) Industrial and Engineering Chemistry Research, 51 (35), pp. 11561-11564. [Abstract and full text]

35.     Afzal, W., Breil, M.P., Tsivintzelis, I., Mohammadi, A.H., Kontogeorgis, G.M., Richon, D., Experimental study and phase equilibrium modeling of systems containing acid gas and glycol (2012) Fluid Phase Equilibria, 318, pp. 40-50. [Abstract and full text]

34.     Awan, J.A., Tsivintzelis, I., Coquelet, C., Kontogeorgis, G.M., Phase equilibria of three binary mixtures: Methanethiol + methane, methanethiol + nitrogen, and methanethiol + carbon dioxide, (2012) Journal of Chemical and Engineering Data, 57 (3), pp. 896-901. [Abstract and full text]

33.     Beier, M.J., Grunwaldt, J.-D., Tsivintzelis, I., Jensen, A.D., Kontogeorgis, G.M., Baiker, A., Selective oxidation of benzyl alcohol in dense CO 2: Insight by phase behavior modelling, (2012) Journal of Supercritical Fluids, 63, pp. 199-207. [Abstract and full text]

32.     Díaz, I., Tsivintzelis, I., Panayiotou, C., Predictions of high pressure phase equilibria of CO2-containing mixtures with the NRCOSMO model, (2012) Fluid Phase Equilibria, 313, pp. 203-210. [Abstract and full text]

 

2011

31.     Tsivintzelis, I., Kontogeorgis, G.M., Michelsen, M.L., Stenby, E.H., Modeling phase equilibria for acid gas mixtures using the CPA equation of state. Part II: Binary mixtures with CO2, (2011) Fluid Phase Equilibria, 306 (1), pp. 38-56. [Abstract and full text]

30.     Tsimpliaraki, A., Tsivintzelis, I., Marras, S.I., Zuburtikudis, I., Panayiotou, C., The effect of surface chemistry and nanoclay loading on the microcellular structure of porous poly(d,l lactic acid) nanocomposites, (2011) Journal of Supercritical Fluids, 57 (3), pp. 278-287. [Abstract and full text]

29.     Kontogiannopoulos, K.N., Assimopoulou, A.N., Tsivintzelis, I., Panayiotou, C., Papageorgiou, V.P., Electrospun fiber mats containing shikonin and derivatives with potential biomedical applications, (2011) International Journal of Pharmaceutics, 409 (1-2), pp. 216-228. [Abstract and full text]

28.     Tsivintzelis, I., Beier, M.J., Grunwaldt, J.-D., Baiker, A., Kontogeorgis, G.M., Experimental determination and modeling of the phase behavior for the selective oxidation of benzyl alcohol in supercritical CO2, (2011) Fluid Phase Equilibria, 302 (1-2), pp. 83-92. [Abstract and full text]

27.     Kontogeorgis, G.M., Tsivintzelis, I., Michelsen, M.L., Stenby, E.H., Towards predictive association theories, (2011) Fluid Phase Equilibria, 301 (2), pp. 244-256. [Abstract and full text]

26.     Breil, M.P., Tsivintzelis, I., Kontogeorgis, G.M., Modeling of phase equilibria with CPA using the homomorph approach, (2011) Fluid Phase Equilibria, 301 (1), pp. 1-12. [Abstract and full text]

 

2010

25.     Awan, J.A., Tsivintzelis, I., Breil, M.P., Coquelet, C., Richon, D., Kontogeorgis, G.M., Phase equilibria of mixtures containing organic sulfur species (OSS) and water/hydrocarbons: VLE measurements and modeling using the cubic-plus- association equation of state, (2010) Industrial and Engineering Chemistry Research, 49 (24), pp. 12718-12725. [Abstract and full text]

24.     Tsivintzelis, I., Kontogeorgis, G.M., Michelsen, M.L., Stenby, E.H., Modeling phase equilibria for acid gas mixtures using the CPA equation of state. I. Mixtures with H2S, (2010) AIChE Journal, 56 (11), pp. 2965-2982. [Abstract and full text]

23.     Kontogeorgis, G.M., Tsivintzelis, I., von Solms, N., Grenner, A., Bøgh, D., Frost, M., Knage-Rasmussen, A., Economou, I.G., Use of monomer fraction data in the parametrization of association theories, (2010) Fluid Phase Equilibria, 296 (2), pp. 219-229. [Abstract and full text]

22.     Tsioptsias, C., Sakellariou, K.G., Tsivintzelis, I., Papadopoulou, L., Panayiotou, C., Preparation and characterization of cellulose acetate-Fe2O3 composite nanofibrous materials, (2010) Carbohydrate Polymers, 81 (4), pp. 925-930. [Abstract and full text]

21.     Tsioptsias, C., Tsivintzelis, I., Panayiotou, C., Equation-of-state modeling of mixtures with ionic liquids, (2010) Physical Chemistry Chemical Physics, 12 (18), pp. 4843-4851. [Abstract and full text]

 

2009

20.     Tsivintzelis, I., Kontogeorgis, G.M., Modeling the vapor-liquid equilibria of polymer-solvent mixtures: Systems with complex hydrogen bonding behaviour, (2009) Fluid Phase Equilibria, 280 (1-2), pp. 100-109. [Abstract and full text]

19.     Tsivintzelis, I., Economou, I.G., Kontogeorgis, G.M., Modeling the phase behavior in mixtures of pharmaceuticals with liquid or supercritical solvents, (2009) Journal of Physical Chemistry B, 113 (18), pp. 6446-6458. [Abstract and full text]

18.     Tsivintzelis, I., Economou, I.G., Kontogeorgis, G.M., Modeling the solid-liquid equilibrium in pharmaceutical-solvent mixtures: Systems with complex hydrogen bonding behaviour, (2009) AIChE Journal, 55 (3), pp. 756-770. [Abstract and full text]

17.     Tsioptsias, C., Tsivintzelis, I., Papadopoulou, L., Panayiotou, C., A novel method for producing tissue engineering scaffolds from chitin, chitin-hydroxyapatite, and cellulose, (2009) Materials Science and Engineering C, 29 (1), pp. 159-164. [Abstract and full text]

 

2008

16.     Tsivintzelis, I., Grenner, A., Economou, I.G., Kontogeorgis, G.M., Evaluation of the nonrandom hydrogen bonding (NRHB) theory and the simplified perturbed-chain-statistical associating fluid theory (sPC-SAFT). 2. Liquid-liquid equilibria and prediction of monomer fraction in hydrogen bonding systems, (2008) Industrial and Engineering Chemistry Research, 47 (15), pp. 5651-5659. ; Erratum: Industrial and Engineering Chemistry Research, 48 (16), p. 7860. [Abstract and full text], [Erratum]

15.     Grenner, A., Tsivintzelis, I., Economou, I.G., Panayiotou, C., Kontogeorgis, G.M., Evaluation of the nonrandom hydrogen bonding (NRHB) theory and the simplified perturbed-chain-statistical associating fluid theory (sPC-SAFT). 1. Vapor-liquid equilibria, (2008) Industrial and Engineering Chemistry Research, 47 (15), pp. 5636-5650. [Abstract and full text]

14.     Marras, S.I., Kladi, K.P., Tsivintzelis, I., Zuburtikudis, I., Panayiotou, C., Biodegradable polymer nanocomposites: The role of nanoclays on the thermomechanical characteristics and the electrospun fibrous structure, (2008) Acta Biomaterialia, 4 (3), pp. 756-765. [Abstract and full text]

 

2007

13.     Tsivintzelis, I., Marras, S.I., Zuburtikudis, I., Panayiotou, C., Porous poly(l-lactic acid) nanocomposite scaffolds prepared by phase inversion using supercritical CO2 as antisolvent, (2007) Polymer, 48 (21), pp. 6311-6318. [Abstract and full text]

12.     Tsivintzelis, I., Angelopoulou, A.G., Panayiotou, C., Foaming of polymers with supercritical CO2: An experimental and theoretical study, (2007) Polymer, 48 (20), pp. 5928-5939. [Abstract and full text]

11.     Tsivintzelis, I., Pavlidou, E., Panayiotou, C., Biodegradable polymer foams prepared with supercritical CO2-ethanol mixtures as blowing agents, (2007) Journal of Supercritical Fluids, 42 (2), pp. 265-272. [Abstract and full text]

10.     Panayiotou, C., Tsivintzelis, I., Economou, I.G., Nonrandom hydrogen-bonding model of fluids and their mixtures. 2. Multicomponent mixtures, (2007) Industrial and Engineering Chemistry Research, 46 (8), pp. 2628-2636. [Abstract and full text]

9.      Tsivintzelis, I., Spyriouni, T., Economou, I.G., Modeling of fluid phase equilibria with two thermodynamic theories: Non-random hydrogen bonding (NRHB) and statistical associating fluid theory (SAFT), (2007) Fluid Phase Equilibria, 253 (1), pp. 19-28. [Abstract and full text]

8.      Tsivintzelis, I., Pavlidou, E., Panayiotou, C., Porous scaffolds prepared by phase inversion using supercritical CO2 as antisolvent. I. Poly(l-lactic acid), (2007) Journal of Supercritical Fluids, 40 (2), pp. 317-322. [Abstract and full text]

7.      Tsivintzelis, I., Dritsas, G.S., Panayiotou, C., An alternative approach to nonrandomness in solution thermodynamics, (2006) Industrial and Engineering Chemistry Research, 45 (21), pp. 7264-7274. [Abstract and full text]

 

2006

6.      Missopolinou, D., Tsivintzelis, I., Panayiotou, C., Excess enthalpies of binary mixtures of 2-ethoxyethanol with four hydrocarbons at 298.15, 308.15, and 318.15 K. An experimental and theoretical study, (2006) Fluid Phase Equilibria, 245 (2), pp. 89-101. [Abstract and full text]

5.      Stefanis, E., Tsivintzelis, I., Panayiotou, C., The partial solubility parameters: An equation-of-state approach, (2006) Fluid Phase Equilibria, 240 (2), pp. 144-154. [Abstract and full text]

 

2005

4.      Missopolinou, D., Tsivintzelis, I., Panayiotou, C., Phase compositions and saturated densities for the binary system of carbon dioxide with 2-ethoxyethanol, (2005) Fluid Phase Equilibria, 238 (2), pp. 204-209. [Abstract and full text]

3.      Stefanis, E., Constantinou, L., Tsivintzelis, I., Panayiotou, C., New group-contribution method for predicting temperature-dependent properties of pure organic compounds, (2005) International Journal of Thermophysics, 26 (5), pp. 1369-1388. [Abstract and full text]

 

2004

2.      Panayiotou, C., Pantoula, M., Stefanis, E., Tsivintzelis, I., Economou, I.G., Nonrandom hydrogen-bonding model of fluids and their Mixtures. 1. Pure fluids, (2004) Industrial and Engineering Chemistry Research, 43 (20), pp. 6592-6606. [Abstract and full text]

1.      Tsivintzelis, I., Missopolinou, D., Kalogiannis, K., Panayiotou, C.Phase compositions and saturated densities for the binary systems of carbon dioxide with ethanol and dichloromethane, (2004) Fluid Phase Equilibria, 224 (1), pp. 89-96. [Abstract and full text]

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Conference Proceedings:

70. F. Tzirakis, I. Tsivitzelis, A. Papadopoulos, P. Seferlis, CO2 solubility in Aqueous Diethylenetriamine and Triethylenetetramine Solutions Used in Carbon Capture Applications, 5th EuChemS Conference on Green and Sustainable Chemistry (5th EuGSC), 26th 29th September 2021, online conference

69. G. Kontos, E. Tzimpilis, I. Tsivintzelis, Effect of water content on the CO2 solubility in Choline Cloride 3-Amino-1-Propanol Aqueous Mixtures, 5th EuChemS Conference on Green and Sustainable Chemistry (5th EuGSC), 26th 29th September 2021, online conference.

68. K. Giannakoula, A. Arampatzis, K. Tsioptsias, K. Kontogiannopoulos, V. Papageorgiou, A. Assimopoulou, I. Tsivintzelis, "Innovative electrospun PHB scaffolds as carriers for the wound healing agents Alkannins and Shikonins". 20th International Congress of International Society for Ethnopharmacology (ISE), 27-29 April 2020, Thessaloniki, Greece.

67. E. Nikolaidou, C. Tsioptsias, I. Tsivintzelis , Development of cellulose acetate butyrate-talc composites with and without silicone as potential compatibilizer, 3rd virtual edition of polymers, plastics and composites, 11-12 May 2021.

66. F. Tzirakis, I. Tsivintzelis, A.I. Papadopoulos, P. Seferlis, Assessment of Phase Change Solvents used in CO2 Capture, ESAT 2021- 31st European Symposium on Applied Thermodynamics France, 4-7 July 2021, online conference.

65. F. Tzirakis, I. Tsivintzelis, A.I. Papadopoulos, P. Seferlis, Experimental Measurement and Assessment of Equilibrium Behaviour for Phase Change Solvents used in CO2 Capture, The 4th Sustainable Process Integration Laboratory Scientific Conference, Energy, Water, Emission & Waste in Industry and Cities, 18-20 November 2020 (Online).

64. F. Tzirakis, I. Tsivintzelis, A.I. Papadopoulos, P. Seferlis, Experimental Measurement and Assessment of Equilibrium Behaviour for Phase Change Solvents used in CO2 Capture, Thermodynamics 2019, 26-28 June, 2019, Punta Umbria, Spain.

70. A.S. Arampatzis, K.Theodoridis, E. Aggelidou, K. Kontogiannopoulos, I.Tsivintzelis, A. Kritis, V.P. Papageorgiou, A.N. Assimopoulou, Novel tissue engineering scaffolds as wound dressings loaded with Alkannins/Shikonins as active ingredients, 67th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research, 1-5 September, 2019, Innsbruck Austria.

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60. T. Zarogiannis, A.I. Papadopoulos, I. Tsivintzelis, P. Seferlis, Efficient Selection of Conventional and Phase-change CO2 Capture Solvents based on Nominal and Off-design Process Operation, 2018 AIChE Annual Meeting, October 28 - November 2, 2018, David L. Lawrence Convention Center, Pittsburgh, USA.

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56. I. Tsivintzelis, C. Panagiotou, Modeling the Thermal Properties of Mixtures with Hydrogen Bonding Fluids: Intra-Molecular Association and Dimerization of Organic Acids, 7 . 2016, - .

55. I. Tsivintzelis, G. Sanxaridou, C. Panagiotou, Thermodynamic Investigation of the Foaming Process in Polymer Supercritical Fluid Systems, Proceedings of the 11th Hellenic Polymer Society International Conference, November 2016, Heraklion Crete Greece.

54. A. Baklavaridis, I. Tsivintzelis, I. Zuburtikudis, C. Panagiotou, Preparation of Porous Poly(L-Lactic acid)-co-(Trimethylene-Carbonate) Structures using Supercritical CO2 as Antisolvent and as Foaming Agent, Proceedings of the 11th Hellenic Polymer Society International Conference, November 2016, Heraklion Crete Greece.

53. G. Panagiotou, . Tsivintzelis, J. Filippou, Development of Novel Wood-Plastic Composites from Recycled Materials, Proceedings of the 11th Hellenic Polymer Society International Conference, November 2016, Heraklion Crete Greece.

52. I. Tsivintzelis, D. Aslanidou, A. Tsali, Costas Panayiotou, Georgios K. Kontogeorgis, CO2 Capture and Transport: Thermodynamic Investigation of Relevant Fluid Mixtures, Book of Abstracts, Thermodynamics 2015, Copenhagen, Denmark, 15-18 September, 2015.

51. I. Tsivintzelis, C. Panayiotou, Foaming of Thermoplastics and Biopolymers with Supercritical Fluids: A Thermodynamic Investigation, Book of Abstracts, Fifth International Conference on Biofoams (BIOFOAMS2015), Sorrento, Italy, 13-16 October, 2015.

50. Sagsaridou G., Tzimpilis E., Tsivintzelis I., Panayiotou C., Experimental and Theoretical Study of Polymer Foaming with Supercritical CO2. Proceedings of the 10th Panhellenic Chemical Engineering Conference, Patra, Greece, 2015.

49. Pazianas I., Christaki T., Kotroni E., Asimopoulou A., Tsivintzelis I., Fibous structures of biodegradable polymers for biomedical applications. Proceedings of the 10th Panhellenic Chemical Engineering Conference, Patra, Greece, 2015.

48. M. Dimopoulou, C. Ritzoulis, I. Tsivintzelis, C. Panayiotou, Investigation of surface properties of okra hydrocolloid extract using inverse gas chromatography, Conference Proceedings, Electronic Edition, 10th Hellenic Polymer Society Conference, (HPSC), Patras, Greece, 4-6 December, 2014.

 47. Tsivintzelis, I.; Scaltsogiannis A., Matzinos P., Panayiotou C., Foaming of Polymers with Supercritical Fluids: From Thermoplastics to Biopolymers, Conference Proceedings, Electronic Edition, 10th Hellenic Polymer Society Conference, (HPSC), Patras, Greece, 4-6 December, 2014.

46. Tsivintzelis, I.; Kontogeorgis, G.M., Advanced equations of state for modeling the phase behavior of systems with supercritical, liquid or gaseous CO2, Conference Proceedings, Electronic Edition, 26th European Symposium on Applied Thermodynamics, (ESAT), Potsdam, Germany, 7-10 October, 2012.

45. Kontogeorgis, G.M.; Tsivintzelis, I.; Maribo-Mogensen, B., Association theories what is possible, what is difficult, what is new, Abstract in Conference Proceedings, Electronic Edition, 26th European Symposium on Applied Thermodynamics, (ESAT), Potsdam, Germany, 7-10 October, 2012.

44. Maia, F.M.; Tsivintzelis, I.; Rodriques, O.; Macedo, E.A.; Kontogeorgis, G.M., The CPA equation of state applied to systems with ionic liquids, Abstract in Conference Proceedings, Electronic Edition, 26th European Symposium on Applied Thermodynamics, (ESAT), Potsdam, Germany, 7-10 October, 2012.

43. I. Tsivintzelis, M.L. Michelsen, E.H. Stenby, G.M. Kontogeorgis, Application of CPA to Mixtures Containing Acid Gases Book of Abstracts of the Industrial Use of Molecular Thermodynamics (InMoTher) 2012Conference, Lyon-France, 19-20 March 2012.

42. I. Tsivintzelis, M. L. Michelsen, E. H. Stenby, G. M. Kontogeorgis, Modeling of Mixtures with Acid Gases using CPA,  Proceedings of the Thermodynamics 2011 conference, September 2011, Athens, Greece, pp 428-430.

41. I. Tsivintzelis, M. Beier, J.-D. Grunwaldt, G.M. Kontogeorgis, Phase equilibria of mixtures related to the catalytic oxidation of alcohols in supercritical CO2: An experimental and theoretical study, Book of Abstracts of the19th European conference on Thermophysical Properties (19th ECTP), August 2011, Thessaloniki, Greece, pp. 244.

40. G.M. Kontogeorgis, I. Tsivintzelis, M.L. Michelsen, E. H. Stenby, Chemicals in Gas Processing (CHIGP): An industrial project fot the thermodynamics of complex petroleum fluids and chemicals, Book of Abstracts of the19th European conference on Thermophysical Properties (19th ECTP), August 2011, Thessaloniki, Greece, pp. 98.

39. N.E. Musko, G.M. Kontogeorgis, J.-D. Grunwaldt, I. Tsivintzelis, Phase Behaviour Modelling of Chemical Reactions in Dense and Supercritical Carbon Dioxide using the Cubic-Plus-Association Equation of State, Proceedings of the 25th European Symposium of Applied Thermodynamics, June 24-27, 2011, Saint Petersburg, Russia.

38. I. Tsivintzelis, G.M. Kontogeorgis, M. Michelsen, E.H. Stenby Modeling of Mixtures with Acid Gases using the CPA Equation of State, Proceedings of the 25th European Symposium of Applied Thermodynamics, June 24-27, 2011, Saint Petersburg, Russia

37. I. Tsivintzelis, G. M. Kontogeorgis,  On the Complex Hydrogen Bonding Behavior of Organic Acids. Proceedings of the 8th Hellenic Conference of Chemical Engineering, May 2011, Thessaloniki, Greece, Digital Edition.

36. Afzal, W., Breil, M.P., Tsivintzelis, I., Mohammadi, A.H., Kontogeorgis, G.M., Richon, D. Experimental study and phase equilibrium modeling of systems containing acid gas and glycol 2010 GPA Annual Convention Proceedings, 1, pp. 248-300.

35. I. Tsivintzelis, M.J. Beier, J.D. Grunwaldt, G.M. Kontogeorgis, Modeling the phase behavior of mixtures used in oxidation of alcohols in supercritical CO2, The 12th International Conference on Properties and Phase Equilibria for Product and Process Design, 2010, Suzhou, China, Digital Edition.

34. A. Tsimpliaraki, I. Tsivintzelis, S.I Marras, I. Zuburtikudis, C. Panayiotou, "Preparation and foaming of nanocomposites in supercritical CO2", Proceedings of the 12th European Meeting on Supercritical Fluids, 2010, Graz, Austria, Digital Edition.

33. M.P. Breil, I. Tsivintzelis, G.M. Kontogeorgis, Modelling the phase equilibria with CPA using the homomorph approach, Book of abstracts of the Molecular Modeling and Simulation for Industrial Applications: Physico-Chemical Properties and Processes, 2010, Wurzburg, Germany.

32. I. Tsivintzelis, I.G. Economou, G.K. Kontogeorgis, Modeling the Solubility of Pharmaceuticals in Liquid and Supercritical Pure and Mixed Solvents  Proceedings of the 24th European Symposium on Applied Thermodynamics (ESAT), 2009, Santiago de Compostela, Spain, Cd-Rom Edition.

31. G. M. Kontogeorgis, I. Tsivintzelis, M.P. Breil, P. C. V. Tybjerg, E. H. Stenby, M.L. Michelsen, Recent Developments of the CPA Equation of State for Associating Fluids,  Proceedings of the 24th European Symposium on Applied Thermodynamics (ESAT), 2009, Santiago de Compostela, Spain, Cd-Rom Edition.

30. G. M. Kontogeorgis, N. von Solms, I. Tsivintzelis, A. Grenner, D. Bøgh, M. Frost, A. Knage-Rasmussen, I. Economou, M.L. Michelsen, The Role of Monomer Fraction Data in Association Theories,  Proceedings of the VIII Iberoamerican Conference on Phase Equilibria and Fluid Properties for Process Design Equifase 2009, Praia da Rocha, Portugal, Cd-Rom Edition.

29. I. Tsivintzelis, I.G. Economou, G.K. Kontogeorgis, Modeling the Phase Behavior in Mixtures of Pharmaceuticals with Liquid or Supercritical Solvents Proceedings of the 7th Panhellenic Chemical Engineering Conference, Patra, Greece, 2009, Cd-Rom Edition.

28. I. Tsivintzelis, G.M. Kontogeorgis, Modeling the complex hydrogen bonding behavior of mixtures with glycols, 10th Joint European Thermodynamics Conference, 2009, Copenhagen, Denmark, Digital edition.

27. A. Tsimpliaraki, I. Tsivintzelis, S.I Marras, I. Zuburtikudis, C. Panayiotou, "Organomodification of nanoclays and its role on the porous structure of polymer nanocomposites produced by supercritical CO2", in Abstract Book of the XXV Panhellinic Conference on Solid State Physics and Materials Science, Thessaloniki, 2009, pp 312.

26. A. Tsimpliaraki, I. Tsivintzelis, I. Zuburtikudis, S.I. Marras, L. Papadopoulou, C. Panayiotou, Porous microcellular nanocomposites of poly(DL-lactic acid)/organically modified montmorillinite The role of alkylammonium type and its cation concentration during the fillers modification, in Proccedings of the 6th Workshop on Nanosciences and Nanotechnologies, Thessaloniki, Greece, 2009, pp. 216.

25. I. Tsivintzelis, A. Grenner, I. Economou, C. Panayiotou, G. Kontogeorgis, Evaluation of the Non-Random Hydrogen Bonding (NRHB) Theory and the simplified Perturbed-Chain-Statistical Associating Fluid Theory (sPC-SAFT), Proceedings of the 23rd European Symposium on Applied Thermodynamics (ESAT), 2008, Cannes, France, Cd-Rom Edition

24. I. Tsivintzelis , S. I. Marras, I. Zuburtikudis, C. Panayiotou, Microcellular nanocomposite polymers prepared with supercritical CO2: The role of nanoclays on porous structure, Proceedings of the 7th Hellenic Polymer Conference, Ioannina, 2008, Digital -Edition.

23. I.G. Economou, E.K. Karakatsani, A.Grenner, I. Tsivintzelis, C. Panayiotou. G.M. Kontogeorgis, Evaluation of Statistical Mechanics-Based Equations of State for Complex Fluid Mixtures, European Congress of Chemical Engineering (ECCE-6), Copenhagen, 16-20 September 2007 vol2, pp. 73-74.

22. I. Tsivintzelis, C. Panayiotou, Foaming of Polymers with Supercritical CO2: An Experimental and Theoretical Study, 11th International Conference on Properties and Phase Equilibria for Product and Process Design, Hersonissos, Crete, Greece, 2007, CD-Rom Edition.

21. I. Tsivintzelis, I. Economou, C. Panayiotou, Statistical Thermodynamics of Strongly Non Ideal Mixtures: Hydrogen Bonding Systems and Polymer Solutions, Proceedings of the 6th Panhellenic Chemical Engineering Conference, Athens, Greece, 2007, pp. 945-948.

20. I. Tsivintzelis, C. Tsioptsias, S.I. Marras, J. Fillipou, C. Panayiotou, Electrospun Fibrous structures from cellulose and its derivatives, Proceedings of the 6th Panhellenic Chemical Engineering Conference, Athens, Greece, 2007, pp. 381-384.

19. C. Tsioptsias, M. Papamichail, C. Mihailof, I. Tsivintzelis, M. Bridakis, C. Panayiotou, Encapsulation of Piroxicam in fibrous scaffolds poly(hydroxyl butyrate), Proceedings of the 6th Panhellenic Chemical Engineering Conference, Athens, Greece, 2007, pp. 453-456.

18. C. Tsioptsias, I. Tsivintzelis, S.I. Marras, Ch. Ritzoulis, C. Panayiotou, Chitin Porous Hydrogels: New production method, Proceedings of the 6th Panhellenic Chemical Engineering Conference, Athens, Greece, 2007, pp. 457-460.

17. I. Tsivintzelis, M. Bridakis, J.L Philippou, C. Panayiotou, Electrospinning of Cellulose and Cellulose Acetate Nanofibers, in Proccedings of the 4th Workshop on Nanosciences and Nanotechnologies, Thessaloniki, Greece, 2007, pp. 103.

16. I. Tsivintzelis, C. Panayiotou, Production of Microcellular Foams with Supercritical CO2: An Experimental and Theoretical Study, Proceedings of 6th Hellenic Conference on Polymers, Patras, Greece, 2006, pp.76-78.

15. I. Tsivintzelis, S.I. Marras, I. Zoumpourtikoudis, C. Panayiotou, Preparation of Porous Structures of Nanocomposite Biodegradable Polymeric Materials, , in Book of Abstracts of II Panhellenic Solid State Physics and Material Science Conference, Patra, Greece, 2006, pp. 181.

14. K. Kladi, I. Tsivintzelis, J.L. Philippou, C. Panayiotou, Electrospinning of Biodegradable Polymer nanofibers, in Proccedings of the 3rd Workshop on Nanosciences and Nanotechnologies, Thessaloniki, Greece, 2006, pp.77

13. S. Marras, I. Tsivintzelis, E. Pavlidou, I. Zuburtikudis, C. Panayiotou, Morphology and Thermal Behaviour of Poly(L-Lactic Acid) Nanocomposite Scaffolds, in Proccedings of the 3rd Workshop on Nanosciences and Nanotechnologies, Thessaloniki, Greece, 2006, pp.98

12. I. Tsivintzelis, T. Spyriouni, I. Economou, Modeling of Phase Equilibria with Non Random Hydrogen Bonding (NRHB) and Statistical Associating Fluid Theory (SAFT) Theories, Proceedings of the 22nd European Symposium on Applied Thermodynamics (ESAT 2006), Elsinore - Denmark, 2006, pp.244-247

11. K.P. Kladi, S. I. Marras, I. Tsivintzelis, C. Panayiotou Fibrous Scaffolds by Electrospinning of Poly(-caprolactone)/Layered Silicate Nanocomposites, Proccedings of the 3rd International Symposium on Nanomanufacturing (ISNM 2005), Limassol - Cyprus, 2005, CD-Rom edition.

10. I. Tsivintzelis, S.I. Marras, I. Zuburtikudis, E. Pavlidou, C. Panayiotou Morphology and Thermal Characteristics of Poly(L-Lactic Acid)/Layered Silicate Nanocomposite Scaffolds for Tissue Engineering, Proceedings of the 7th Mediterranean Conference on Calorimetry and Thermal Analysis (MEDICTA 2005), Ed. M. Lalia-Kantouri, Thessaloniki, 2005, pp.103-108

9. G.S. Dritsas, I. Tsivintzelis, C. Panayiotou Study of Retrograde Vitrification for Polymers with Inverse Supercritical Chromatography, Proceedings of the 7th Medeterranean Conference on Calorimetry and Thermal Analysis (MEDICTA 2005), Ed. M. Lalia-Kantouri, Thessaloniki, 2005, pp.123-128

8. D. Missopolinou, I. Tsivintzelis, C. Panayiotou Thermodynamic Properties of the Binary Mixtures of 2-Ethoxyethanol with Hydrocarbons and Carbon Dioxide, Proceedings of the 7th Medeterranean Conference on Calorimetry and Thermal Analysis (MEDICTA 2005), Ed. M. Lalia-Kantouri, Thessaloniki, 2005, pp. 247-252

7. I. Tsivintzelis, S.I. Marras, I. A.G. Agelopoulou, E. Pavlidou, C. Panayiotou, Preparation of Microporous Polymer Nanocomposites using Supercritical CO2, Proceedings of the 5th Panhellenic Chemical Engineering Conference, Thessaloniki, Greece, 2005, pp. 405-408

6. I. Tsivintzelis, T. Spyriouni, I.G. Economou Modelling Phase Equilibrium with two Thermodynamic Theories: Non Random Hydrogen Bonding (NRHB) and Statistical Associating Fluid Theory (SAFT), Proceedings of the 5th Panhellenic Chemical Engineering Conference, Thessaloniki, Greece, 2005, pp. 1233-1236

5. I. Tsivintzelis, S.I. Marras, I. Zuburtikudis, E. Pavlidou, C. Panayiotou Porous Scaffolds for Biomedical Applications Proceedings of 2nd Panhellenic Plastics Conference, Athens, Greece, 2005, CD-Rom edition.

4. I. Tsivintzelis, G.S. Dritsas, C. Panayiotou Study of Retrograde Vitrification of Polymers with Inverse Supercritical Chromatography in Book of Abstracts of Panhellenic Solid State Physics and Material Science Conference, Ioannina, Greece, 2004, pp. 16

3. I. Tsivintzelis, S.I. Marras, I. A.G. Agelopoulou, E. Pavlidou, C. Panayiotou, Preparation of Microcellular Polymer Nanocomposites by CO2, in Book of Abstracts of Panhellenic Solid State Physics and Material Science Conference, Ioannina, Greece, 2004, pp. 19.

2. M. Pantula, I. Tsivintzelis, C. Panayiotou Polymer Interactions with Supercritical Fluids: A Unified Approach, Proceedings of XIX Panhellenic Solid State Physics and Material Science Conference, Thessaloniki, Greece, 2003, pp. 459-462

1. I. Tsivintzelis, A.N. Christodoulakis, C. Lambrou, D. Missopolinou-Tatala, C. Panayiotou Olive and Olive Husk Oil Extraction with Supercritical CO2 Proceedings of the 3rd Panhellenic Chemical Engineering Conference, Athens, Greece, 2001, pp. 781-784.

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