Synthesis and flocculation characteristics of chitosan and its grafted polyacrylamide

被引：15

作者：

Zhang, Yuhong ^{[1
]}

Jin, Haiqin ^{[1
]}

He, Peixin ^{[1
]}

机构：

[1] Hubei Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Synth & Applicat Organ Funct Mol, Wuhan 430062, Peoples R China

来源：

ADVANCES IN POLYMER TECHNOLOGY | 2012年 / 31卷 / 04期

关键词：

Chitosan; Flocculation; Graft copolymers; Polyacrylamide; WASTE-WATER; COAGULATION; POLYMER;

D O I：

10.1002/adv.20252

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A flocculant based on chitosan was prepared, and its flocculation behavior was studied. The graft copolymer of acrylamide onto chitosan was synthesized using potassium persulfate as an initiator. The effect of reaction conditions, i.e., deacetylation degree of chitosan (CTS), the effect of the concentration, solution pH, and the initial concentration of kaolin on flocculation characteristics of chitosan-grafted polyacrylamide (CAM), was discussed. The experimental results showed that the higher the deacetylation degree of chitosan, the better the flocculation performance of CAM. The concentration and pH of flocculant solution had a great impact on the flocculation performance. Compared with chitosan, the graft copolymer had a better flocculating effect on the kaolin suspensions. (C) 2011 Wiley Periodicals, Inc. Adv Polym Techn 31: 292297, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/adv.20252

引用

页码：292 / 297

页数：6

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