title: Thermal stability and degradation of chitosan modified by benzophenone.
abstract: N-(biphenylmethylidenyl) chitosan polymer was prepared, characterized and thermal stability was compared with chitosan. Thermal degradation products of the modified polymer were identified by GC-MS technique. It seems that the mechanism of degradation of the prepared polymer is characterized by formation of low molecular weight radicals, followed by random scission mechanism along the backbond chain.
authors.affiliation: Chemistry Department, Faculty of Science, Mansoura University, Demiatta, Egypt.
authors.forename: M A
authors.initials: MA
authors.lastname: Diab
authors.forename: A Z
authors.initials: AZ
authors.lastname: El-Sonbati
authors.forename: D M D
authors.initials: DM
authors.lastname: Bader
mesh_terms: D001577:Benzophenones / Q000737:chemistry*; D001672:Biocompatible Materials; D048271:Chitosan / Q000737:chemistry* / Q000378:metabolism*; D008401:Gas Chromatography-Mass Spectrometry; D008970:Molecular Weight; D011108:Polymers / Q000737:chemistry* / Q000378:metabolism*; D013696:Temperature
chemical_list: D001577:Benzophenones; D001672:Biocompatible Materials; D011108:Polymers; C047723:benzophenone; D048271:Chitosan