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Title: Thermal Characterization of Chitosan-Grafted Membranes to be Used as Wound Dressings
Authors: Ferreira, P. 
Coelho, J. F. J. 
Santos, K. S. C. R. dos 
Ferreira, E. I. 
Gil, M. H. 
Issue Date: 2006
Citation: Journal of Carbohydrate Chemistry - Taylor & Francis. 25:2 (2006) 233-251
Abstract: 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 biopolymer. The swelling capacity of the membranes was also determined. The chitosan-graft-AA-graft-HEMA with an equimolar ratio of HEMA and AA kept good swelling capacity without compromising its physical stability, which suggests it to be the best matrix for drug delivery systems.
Rights: openAccess
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais

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