Synthesis, characterization and thermal sensitivity of chitosan-based graft copolymers

被引：54

作者：

Kang, Hong-Mei ^{[1
]}

Cai, Yuan-Li ^{[1
]}

Liu, Peng-Sheng ^{[1
]}

机构：

[1] Xiangtan Univ, Coll Chem, Inst Polymer Sci & Engn, Xiangtan, Hunan, Peoples R China

来源：

CARBOHYDRATE RESEARCH | 2006年 / 341卷 / 17期

关键词：

chitosan; characterization; graft copolymerization; grafting percentage; thermal sensitivity;

D O I：

10.1016/j.carres.2006.08.001

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Novel chitosan-based graft copolymers (CECTS-g-PDMA) were synthesized through homogeneous graft copolymerization of (N,N-dimethylamino)ethyl methacrylate (DMA) onto N-carboxyethylchitosan (CECTS) in aqueous solution by using ammonium persulfate (APS) as the initiator. The effect of polymerization variables, including initiator concentration, monomer concentration, reaction time and temperature, on grafting percentage was studied. XRD, FTIR, DSC and TGA were used to characterize the graft copolymers. Surface-tension measurements, turbidity measurements and temperature-variable H-1 NMR analysis were combined to investigate the thermal sensitivity of CECTS-g-PDMAs in aqueous solution. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：2851 / 2857

页数：7

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