Professor (male)
Physical Chemistry
Chemistry Department
University of Ioannina
Panepistimiopolis Douroutis, Chemistry Department, 45110 Ioannina
Tel: (+30)2651008430



B. Sc. Degree in Chemistry, University of Ioannina, School of Natural Sciences July 1982

Ph.D. in Chemistry, School of Natural Sciences, University of Ioannina 1984-1989. Thesis: Effects of the architecture on the conformational properties of polymers in dilute solutions. Supervisor:  Marios Kosmas

Postdoctoral Researcher:  Chemistry Department University of Ioannina (8 months) 1991-1991.

Postdoctoral fellow at Universidad Complutense and UNED Madrid Spain 1991-1993 (24 months) Cooperation with Prof. Juan Freire and Arturo Horta.

Postdoctoral Researcher:  Chemistry Department University of Athens  1993-2001.  Cooperation with Prof. N. Hadjichristidis


Academic Career

Lecturer, Department of Chemistry University of Ioannina 2001-2006

Assistant Professor , Department of Chemistry University of  Ioannina 2006-2012

Associated Professor, Department of Chemistry University of  Ioannina 2012-2018

Professor, Department of Chemistry University of  Ioannina 2018-

Areas of Specialization

  •           Conformational properties of polymers with various architectures (Renormalization Group Theory and Monte Carlo Simulations)
  • ·         Adsorption of homopolymers  on  impenetrable wall. (Renormalization group theory)
  • ·         Melts and blends of homopolymers with various architectures. (Renormalization group theory and Monte Carlo simulations)
  • ·         Micellization properties of copolymers and terpolymers with various architectures.  ( Molecular dynamics simulation)
  • ·         Peptides conformation ( Atomistic molecular dynamics simulation)
  • ·         Polyelectrolyte micelles and inter -polyelectrolyte complexes  ( Molecular dynamics simulation)
  • ·         Polyelectrolyte Brushes  ( Molecular dynamics simulation)



List of publications

1. Effects of the excluded volume interactions on the conformational properties of star polymers, C. Vlahos and M. Kosmas, Polymer (1984),25,1607.

2. Conformational properties of regular comb polymers, C. Vlahos and M. Kosmas, J. Phys. A: Math. Gen (1987),20,1471.

3. On the polydispersity of star macromolecules, M. Kosmas, C. Vlahos, N. Hadjichristidis, Macromolecules (1991), 24, 5727.

4. Conformational properties of AxBy star copolymers, C. Vlahos, A. Horta and J. Freire, Macromolecules, (1992),25,5974.

5. Conformational properties of the diblock copolymers: Monte Carlo calculations and comparison with the renormalization group predictions, C. Vlahos, A. Horta, L. Molina and J. Freire, Macromolecules, (1994),27,2726.

6. Monte Carlo calculations of miktoarm star copolymers C. Vlahos, A. Horta, N. Hadjichristidis and J. Freire, Macromolecules, (1995),28,1500.

7. Conformational properties of Ring AB diblock copolymers, C. Vlahos, N. Hadjichristidis, M. Kosmas, A. Rubio and J. Freire. Macromolecules, (1995),28,6854.

8. Conformation of A2B and A3B miktoarm star copolymers in dilute solutions, C. Vlahos, Y. Tselikas, N. Hadjichristidis, J. Roovers, A. Rey and J. Freire Macromolecules (1996),29,5599.

9. Second Virial Coefficient of AxBy Miktoarm Star Copolymers in Common Q, Common Good, and Selective Solvents, C. Vlahos and N. Hadjichristidis, Macromolecules (1998),31,6691.

10. Asymmetric Star Polymers. Synthesis and Properties, N. Hadjichristidis, M. Pitsikalis, S. Pispas, E. Iatrou and C. Vlahos, invited review article, Advances in Polymer Science (1999),142,71.

11. Sizes and Second Virial Coefficients of Miktoarm Star Polymers. A. Rubio, P. Brea, J. Freire and C. Vlahos, Macromolecules (2000),33,207

12. On the Miscibility of Chemically Identical Linear Homopolymers of Different Size, C. Vlahos and M. Kosmas, Polymer (2003),44,503.

13. Comparison of the Stability of Blends of Chemically Identical and Different Homopolymers in the Bulk and in a Film M. Kosmas and C. Vlahos J. Chem. Phys. (2003),119,4043.

14. Effective Interaction Parameter of Star/Star, Ring/Ring, and Ring/Linear Chemically Identical Blends C. Vlahos and M Kosmas Macromolecules (2004),37,9184.

15. An equation of state of melts of linear homopolymers M Kosmas C Vlahos C Tsironis European Polymer Journal (2005),41, 2303.

16. Diffusion in the presence of a pole: From the continous Gaussian to a discrete Lattice model E. Bakalis, C. Vlahos and M. Kosmas Physica A (2006), 360,1.

17. Effects of the chain architecture on the miscibility of symmetric Linear/Linear and Star/Star polymer blends P. Theodorakis, A. Avgeropoulos, J. Freire, M. Kosmas and C. Vlahos Macromolecules( 2006), 39, 4235.

18. A theoretical study of conformational properties of dendritic block copolymers of first generation M. Kosmas, C. Vlahos and A. Avgeropoulos J. Chem. Phys. (2006),125,art no 094908.

19. Synthesis, molecular characterization and theoretical study of first generation dendritic homopolymers of butadiene and isoprene with different microstructures S. Rangou, P. Theodorakis, L. Gergidis,A. Avgeropoulos, P. Efthymiopoulos, D. Smyrnaios, M. Kosmas, T. Giannopoulos Polymer(2007) ,48,652.

20. Effective interaction parameter of linear/star polymer blends and comparison with that of linear/linear and star/star blends P. Theodorakis, A. Avgeropoulos, J. Freire, M. Kosmas and C. Vlahos J. Chem. Phys. (2007), 126, 174904

21. Monte Carlo Simulation of star/linear and star/star chemically identical blends. P. Theodorakis, A. Avgeropoulos, J. Freire, M. Kosmas and C. Vlahos. Journal of Physics:Condensed Matter 19, 46611 (2007).

22. Conformational Properties of Dendritic Homopolymers with interacting branching points P. Efthymiopoulos, M. Kosmas, C. Vlahos, L.N. Gergidis. Macromolecules 2007,40,9164.

23. Off Lattice Monte Carlo Simulations of AB Hybrid Dendritic Star Copolymers L. Gergidis, O. Moultos, C. Georgiadis, M. Kosmas, C. Vlahos. Polymer 2009,50,328.

24. A theoretical study on the size and the shape of linear dendronized polymers in good and selective solvents P. Efthymiopoulos, C. Vlahos , M. Kosmas Macromolecules 2009,42,1362.

25. Brownian Dynamics Simulations on Self-Assembly Behavior of H-Shaped Copolymers and Terpolymers O. Moultos, L. Gergidis, C. Vlahos* Macromolecules 2010,43,6903.

26.Brownian Dynamics Simulations on the Self-Assembly Behavior AB Hybrid Dendritic_Star Copolymers C. Georgiadis, O. Moultos, L. Gergidis, C. Vlahos* Langmuir 2011,27,835.

27. Self-Assembly Behavior of Thermoresponsive Bis-Solvophilic Linear Block Terpolymers: A simulation Study O. Moultos, L. Gergidis, C. Vlahos* Macromolecules 2012,45,2570.

28.Dendritic Brushes under Good Solvent Conditions: A Simulation Study L. Gergidis, A. Kalogirou and C. Vlahos Langmuir 2012, 28, 17176.

29. Dendritic Brushes under Theta and Poor Solvent Conditions. L. Gergidis, A. Kalogirou, A. Charalambopoulos and C. Vlahos J.Chem. Phys. 2013, 139, 044913.

30. Micellization Properties of Θ-Shaped, Figure-Eight-Shaped and Linked Rings Copolymers. A. Kalogirou ,O. Moultos, L. Gergidis, and C. Vlahos Macromolecules, 2014, 47, 5851

31. Entropic Effects in Mixed Micelles Formed by Star/Linear and Star/StarAB Copolymers O. Moultos, L. Gergidis, A. Kalogirou, and C. Vlahos J. Polymer Science Part B 2015, 53, 442

32. Entropic effects, shape, and size of mixed micelles formed by copolymers with complex architectures A. Kalogirou, L. Gergidis, O. Moultos and C. Vlahos Phys. Rev. E 2015 ,92, 052601,

33. Complexation of Polyelectrolyte Micelles with Oppositely Charged Linear Chains. A. Kalogirou, L. Gergidis, K. Miliou and C. Vlahos J. Phys. Chem. B 2017 , 121, 1982-1991.

34. Molecular Dynamics Simulation of Brushes Formed by Star Polyelectrolytes under Theta Solvent Conditions K. Miliou, L. Gergidis, and C. Vlahos J. Polymer Science Part B 2017,55, 1110-1117.

35. Polyelectrolyte Micelles in Salt Free Solutions: Micelle Size and Electrostatic Potential . K. Miliou, L. Gergidis, and C. Vlahos Journal of Polymer Science, Part B: Polymer Physics 2018, DOI: 10.1002/polb.24608

36. Directed Motion of a Polyelectrolyte Micelle along Tethered Chains of Oppositely Charged Polyelectrolyte Brush K. Miliou, L. N. Gergidis and C. Vlahos, Journal of Polymer Science: Part B Polymer Physics 2019 , 57, 621-631. (Cover Image)

37. Mixed brushes consisting of oppositely charged Y-shaped polymers in salt free, monovalent and divalent salt solutions. K. Miliou, L. N. Gergidis and C. Vlahos Journal of Polymer Science 2020 DOI 10.1002/pol.20200141

38. Micellization through complexation of oppositely charged diblock copolymers: Effects of composition, polymer architecture, salt of different valency, and thermoresponsive block. Gioldasis C,
Gergidis LN, Vlahos C  J Polym Sci. 2021,59, 191–204.

39. Complexation of a Polyelectrolyte Brush with Oppositely Charged AB Diblock Copolymers: The Zipper Brushes. Gioldasis C,  Gergidis L N, Vlahos C. Macromolecular Theory and Simulations 2022