Graft copolymerization of (dimethylamino)ethyl methacrylate onto chitosan initiated by ceric ammonium nitrate

被引：16

作者：

Liang, J

Ni, PH ^{[1
]}

Zhang, MZ

Yu, ZQ

机构：

[1] Suzhou Univ, Dept Chem & Chem Engn, Suzhou 215006, Peoples R China

[2] Soochow Univ, Inst Mat Engn, Suzhou, Peoples R China

来源：

JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY | 2004年 / A41卷 / 06期

关键词：

chitosan; (dimethylamino)ethyl methacrylate; graft copolymerization;

D O I：

10.1081/MA-120034199

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

(Dimethylamino)ethyl methacrylate (DMAEMA) was grafted onto chitosan using ceric ammonium nitrate as initiator in acetic acid solution. The effects of reaction variables on the grafting percentage and efficiency percentage were investigated, including the amounts of monomer and initiator, reaction time and reaction temperature. The grafted copolymers were confirmed by FTIR, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The results of TGA and DSC indicated the improvement of thermal stability for chitosan-g-poly(PDMAEMA). Solubility test revealed the improved hydrophilicity of grafted chitosan in aqueous acetic acid solution, and its swelled behavior in mixtures of glacial acetic acid and anhydrous ethanol (the ratios of 1:1 and 1:2, v/v). The grafted copolymer possessed amphiphilic structure and exhibited properties of polymeric surfactant.

引用

页码：685 / 696

页数：12

共 28 条

[1] CHITOSAN AND MODIFIED CHITOSAN MEMBRANES .1. PREPARATION AND CHARACTERIZATION [J].