کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9562623 1382962 2005 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of a novel chitosan derivative having poly (ethylene oxide) side chains in aqueous reaction media
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Synthesis of a novel chitosan derivative having poly (ethylene oxide) side chains in aqueous reaction media
چکیده انگلیسی
The graft copolymer, chitosan-g-poly (ethylene oxide), was prepared through graft polymerization of poly (ethylene oxide) chains to chitosan due to the reaction between OH groups from poly (ethylene oxide) and COOH groups from 6-O-succinate-N-phthaloyl-chitosan (PHCSSA) in the presence of water as a swelling agent. The product particles are spheres with the size of few hundred nanometers as observed from transmission electron micrographs. Then phthaloyl groups were deprotected to give the free amino groups. The chemical structure of chitosan-g-poly (ethylene oxide) was characterized by FTIR, 1H and 13C NMR spectroscopies. XRD, Spectrofluorophotometry and TEM were also used to characterize the copolymer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 65, Issue 3, December 2005, Pages 301-308
نویسندگان
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