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Stabilisation of the Secondary Structure of Chitosan Gels during the Preparation of Composites
Author(s) -
Djelad A.,
Morsli A.,
Robitzer M.,
Bengueddach A.,
Di Renzo F.,
Quignard F.
Publication year - 2008
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200851314
Subject(s) - chitosan , zeolite , porosity , materials science , composite number , chemical engineering , composite material , chemistry , catalysis , organic chemistry , engineering
Summary: Zeolite‐chitosan composites have been prepared by encapsulation of zeolites by a gelling solution of chitosan or by in‐situ synthesis of zeolites inside a chitosan gel. The preparation of the composite implies modifications of both components. Zeolites are dealuminated by the acid solution in which chitosan is dissolved and the morphology of the chitosan fibrils is stabilized by iniorganic species issued from the dealumination of the zeolites or from their synthesis medium. Zeolite‐bearing chitosan xerogels present surface area and porosity similar to the textural properties of chitosan aerogels.