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Chitosan and modified chitosan membranes I. Preparation and characterisation
Author(s) -
Blair Hal S.,
Guthrie John,
Law TakKau,
Turkington Paul
Publication year - 1987
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.1987.070330226
Subject(s) - chitosan , chitin , polymer chemistry , copolymer , ultimate tensile strength , vinyl alcohol , monomer , chemical engineering , materials science , hydrolysis , chemistry , composite material , polymer , organic chemistry , engineering
Chitosan has been prepared from prawn shell and crab shell chitin. The molecular weight of the material derived from prawn shells is higher than that obtained from crab shell. The molecular weight, tensile strength, elongation at the break, and hydrophilic properties of chitosan are extremely dependent on the degree of deacetylation achieved when chitin is hydrolyzed to chitosan. Graft copolymers have been prepared with chitosan and a series of vinyl monomers using both heterogeneous and homogeneous reaction conditions. The hydrophilic properties of chitosan can be modified by blending with poly(vinyl alcohol).