以分散聚合法合成具有生物分解性的接枝共聚合體以及其應用
Date Issued
2000
Date
2000
Author(s)
DOI
892216E002008
Abstract
In this study, thermal dissociation
initiator and redox initiator were both used to
initiate the polymerization of monomer onto
chitosan. The reaction mechanism, kinetics,
structures and thermal properties of the
copolymers were studied. It was found that
when potassium persulfate (KPS) was used
to initiate the polymerization of MMA onto
chitosan, an emulsion was obtained with a
block copolymer structure. While cerium
ammonium nitrate was used for the
polymerization of vinyl acetate onto chitosan,
a stable dispersion system was obtained with
a grafted copolymer structure. In both
systems, the surface of the latex particles was
found to be rich in the chitosan. The chitosan
molecules not only took part in the
copolymerization, but also served as a role of
surfactant, which provided the stability of
dispersion particles.
Subjects
chitosan
graft copolymer
block copolymer
potassium persulfate
cerium ammonium nitrate
Publisher
臺北市：國立臺灣大學材料科學與工程學研究所
Type
report
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