Konstantinos Raftopoulos

As. Professor

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E-mail: kraftop@central.ntua.gr
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Dr Konstantinos Raftopoulos received his degree in Physics by the National Kapodestrian University of Athens in 2003. In 2005 he received his MSc in Energy Production and Management and in 2011 his doctorate diploma, both by the National Technical University of Athens.

He is mainly active in the study of structure-property relationships in nanocomposite polymeric materials and especially molecular mobility in organic-inorganic hybrids. His research interests include also the study of hyperbranched polymers. He mainly employs differential scanning calorimetry (conventional and temperature modulated), dielectric relaxation spectroscopy and thermally stimulated depolarization currents.


  • Structure - properties relationships studies in nanostructured polymeric materials, Doctorate Thesis, National Technical University of athens, 2011 (in Greek)
  • Electrochemical devices in energy production and storage. Theory - modeling, Postgraduate Thesis, National technical University of Athens, 2005 (in Greek)
  • Broadband dielectric spectroscopy and hydration properties in segmented polyurethanes, Graduate Thesis, national and Kapodestrian University of Athens, 2003 (in Greek)

Selected Publications

  • K.N. Raftopoulos, K. Pielichowski. Segmental dynamics in hybrid polymer/POSS materials. Progress in Polymer Science, 52, 136-87, 2016. (download)
  • S. Koutsoumpis, K.N. Raftopoulos, M. Jancia, J. Pagacz, E. Hebda, C.M. Papadakis, K. Pielichowski, P. Pissis. POSS moieties with PEG vertex groups as diluent in polyurethane elastomers: morphology and phase separationMacromolecules, 49, 6507-6517, 2016. (download)
  • S. Kripotou, C. Psylla, K. Kyriakos, K.N. Raftopoulos, J. Zhao, G. Zhang, S. Pispas, C.M. Papadakis, A. Kyritsis. Structure and crystallization behavior of poly(ethylene oxide) (PEO) chains in core-shell brush copolymers with poly(propylene oxide)-block-poly(ethylene oxide) side chainsMacromolecules, 49, 5963-77, 2016. (download)
  • K.N. Raftopoulos, S. Koutsoumpis, M. Jancia, J.P. Lewicki, K. Kyriakos, H.E. Mason, S.J. Harley, E. Hebda, C.M. Papadakis, K. Pielichowski, P. Pissis. Reduced phase separation and slowing of dynamics in polyurethanes with three-dimensional POSS-based cross-linking moieties. Macromolecules, 38(5), 1429-41, 2015. (download)
  • K.N. Raftopoulos, B. Janowski, L. Apekis, P. Pissis, K. Pielichowski. Direct and indirect effects of POSS on the molecular mobility of polyurethanes with varying segment Mw. Polymer, 54(11), 2745-2754, 2013.
  • KN. Raftopoulos, M. Jancia, D. Aravopoulou, E. Hebda, K. Pielichowski, P. Pissis. POSS along the hard segments of polyurethane. Phase separation and molecular dynamics. Macromolecules, 46(18), 7378-7386, 2013. (download)
  • K.N. Raftopoulos, B. Janowski, L. Apekis, K. Pielichowski and P. Pissis. Molecular mobility and crystallinity in polytetramethylene ether glycol in the bulk and as soft component in polyurethanes, European Polymer Journal, 47, 2120, 2011.
  • K.N. Raftopoulos, Ch. Pandis, L. Apekis, P. Pissis, B. Janowski, K. Pielichowski, J. Jaczewska. Polyurethane-POSS hybrids: Molecular dynamics studies. Polymer, 51, 709, 2010.
  • A. Kyritsis, K. Raftopoulos M.A. Rehim, Sh. Said Shabaan, A. Ghoneim, and G. Turky. Structure and molecular dynamics of hyperbranched polymeric systems with urethane and urea linkages. Polymer, 50, 4039, 2009.
  • S. Kosma, K. Raftopoulos, P. Pissis, A. Strachota. L. Matejka, F. Ribot, J. Nedbal. Molecular mobility of stannoxane modified epoxy resins. Journal of Nanostructured Polymers and Nanocomposites, 3, 144, 2007.