Graft copolymerization of acrylamide onto carboxymethyl starch

被引：69

作者：

Cao, YM ^{[1
]}

Qing, XS

Sun, J

Zhou, FM

Lin, SA

机构：

[1] Xian Jiaotong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

[2] Zhongshan Univ, Sch Chem & Chem Engn, Polymer Res Inst, Guangzhou 510275, Peoples R China

来源：

EUROPEAN POLYMER JOURNAL | 2002年 / 38卷 / 09期

关键词：

carboxymethyl starch; acrylamide; graft polymerization; water absorption;

D O I：

10.1016/S0014-3057(02)00077-0

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Water absorption resins of carboxymethyl starch graft acrylamide (CMS-g-AM) were synthesized by copolymerization based on a free radical reaction. At first, CMS was prepared with starch and chloroacetic acid in an alkali-methanol media. Then, AM was grafted onto CA-IS by using ceric ammonium nitrate as an initiator. The resulting graft products were identified by infrared spectra. The effects of the preparation conditions on the substituent degree (SD) of starch and the water absorption capacities of CMS-g-AM were investigated. The results showed that SD of starch first increased remarkably and then decreased gradually with increased addition of sodium hydroxide, and the water absorption capacity of CMS-g-AM depended greatly on the SD of CMS and its maximum with 0.75 of SD of starch was 350 g/g. 2002 Published by Elsevier Science Ltd.

引用

页码：1921 / 1924

页数：4

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