Pandis, Christos; Madeira, Sara; Matos, Joana; Kyritsis, Apostolos; Mano, Joao; Gómez Ribelles, José Luís(Elsevier, 2014-09-01)
Chitosan-silica porous hybrids were prepared by a novel strategy in order to improve the mechanical properties of chitosan (CHT) in the hydrogel state. The inorganic silica phase was introduced by sal-gel reactions in ...
[EN] Differential scanning calorimetry (DSC) and two dielectric techniques, broadband dielectric relaxation spectroscopy and thermally stimulated depolarization currents (TSDC), were employed to study glass transition and ...
Glass transition and water dynamics in hydrated hyaluronic acid (HA) hydrogels crosslinked by divinyl sulfone (DVS) were studied by differential scanning calorimetry (DSC), dielectric relaxation spectroscopy (DRS) and water ...
A novel approach to reinforce polymer porous membranes is presented. In the prepared hybrid materials, the inorganic phase of silica is synthesized in-situ and inside the pores of aminolyzed polylactic acid (PLA) membranes ...
Pandis, Christos; Spanoudaki, Anna; Kyritsis, Apostolos; Pissis, Polycarpos; Rodríguez Hernández, José Carlos; Gómez Ribelles, José Luís; Monleón Pradas, Manuel(Wiley, 2011-05-01)
[EN] Water sorption in hydrogels based on nanocomposites of poly(2-hydroxyethyl acrylate) (PHEA) and silica, prepared by simultaneous polymerization and sol-gel process, were studied gravimetrically over wide ranges of ...