SOME WATER-SOLUBLE COPOLYMERS FROM LIGNIN

被引：42
|
作者：
CHEN, RL
KOKTA, BV
DANEAULT, C
VALADE, JL
机构：
[1] Univ du Quebec a Trois-Rivieres,, Trois-Rivieres, Que, Can, Univ du Quebec a Trois-Rivieres, Trois-Rivieres, Que, Can
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 1986年 / 32卷 / 05期
关键词：
GRAFT COPOLYMERS - Stability - LIGNIN - Grafting - POLYMERIZATION - Copolymerization - POLYMERS - Viscosity;
D O I：
10.1002/app.1986.070320504
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The utilization of lignin materials would be enhanced if lignin properties could be altered through chemical modification. Towards this end, lignosulfonate, recovered from spent pulping liquors, was grafted with acrylamide or acrylic acid, using redox initiation. Study was made of the effects of some reaction variables (such as reaction medium, lignin/monomer ratio, and initiator concentration) on the copolymerization efficiency and on the copolymer characteristics. Lignosulfonate having bivalent counterions yielded better copolymerization results than that having univalent cations. Aqueous solutions of graft copolymers displayed high viscosities, and exhibited promising stability during storage and against shearing, suggesting the potential use of copolymers as water-thickening agents.
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页码：4815 / 4826
页数：12
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