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Synthesis and characterization of membranes obtained by graft copolymerization ...
Santos, K. S. C. R. dos; Coelho, J. F. J.; Ferreira, P.; Pinto, I.; Lorenzetti, S. G.; Ferreira, E. I.; Higa, O. Z.; Gil, M. H.Chitosan based membranes to be applied on wound healing as topical drug delivery systems were developed by graft copolymerization of acrylic acid (AA) and 2-hydroxyethyl methacrylate (HEMA) onto chitosan using cerium ammonium nitrate as chemical initiator. Evidence for graft copolymerization of the vinyl monomers onto chitosan was obtained by FTIR and DMTA. Swelling degree, cytotoxicity, thrombogenicity and hae...
Thermal Characterization of Chitosan-Grafted Membranes to be Used as Wound Dres...
Ferreira, P.; Coelho, J. F. J.; Santos, K. S. C. R. dos; Ferreira, E. I.; Gil, M. H.Six different membranes previously prepared by the authors by graft copolymerization of acrylic acid (AA) and 2-hydroxyethylmethacrylate (HEMA) onto chitosan were characterized. The graft copolymerization of the vinyl monomers onto chitosan was confirmed by FTIR and DMTA. The chitosan used was also characterized by DMTA, which allowed addressing some questions related to the typical thermal transitions of this ...
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