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Chitosan modified by poly(ethylene oxide): Film and mixture properties
Author(s) -
Budtova Tatiana,
Belnikevich Nina,
Kalyuzhnaya Ljudmila,
Alexeev Vladimir,
Bronnikov Sergei,
Vesnebolotskaya Svetlana,
Zoolshoev Zoolsho
Publication year - 2002
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.2359
Subject(s) - chitosan , ethylene oxide , materials science , stoichiometry , polymer chemistry , monomer , oxide , chemical engineering , polymer , ethylene , solvent , copolymer , chemistry , composite material , organic chemistry , catalysis , engineering , metallurgy
Abstract Chitosan + poly(ethylene oxide) mixtures and films prepared from these mixtures were studied by rheological, absorption of solvent vapors, SANS, and mechanical testing methods. At a stoichiometric chitosan:poly(ethylene oxide) monomer:monomer composition, the mechanical properties of chitosan + poly(ethylene oxide) film are the best as compared with those of the initial components or of other compositions. This film composition is shown to be less heterogeneous. Chitosan and poly(ethylene oxide) are proved to be slightly incompatible polymers. This is supposed to induce the two components to align and to order at their stoichiometric composition, leading to the improvement in the mechanical properties. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 84: 1114–1122, 2002; DOI 10.1002/app.10319