林产化学与工业2004，Vol.24Issue(3)：1-6,6.
木质素磺酸盐与丙烯酸类单体的接枝共聚研究
STUDY ON GRAFT-COPOLYMERIZATION OF CRUDE LIGNOSULFONATES WITH ACRYLIC MONOMERS
摘要
Abstract
Graft copolymerization of crude lignosulfonates with acrylic monomers was investigated, its mechanism wasreviewed, and the occurrence of polymerization was confirmed by IR determination. Differing from pure lignosulfo-nates, graft copolymerization of crude lignosulfonates with acrylic monomers could be initiated solely by hydroperoxideat 1.5% - 2.0% ( mass ratio) of dry lignosulfonates. With sufficient initiator in the reaction solution,the influence ofreaction temperature and time on viscosity of products was not apparent. Viscosity of final products was increasedfollowing the increase of monomers dosage. At the same dosage, products modified with acrylamide(AM) had higherviscosity than those with acrylic acid( AA), because amide groups on AM polymers is less hydrophilic than carboxylicgroups on AA polymers.关键词
木质素磺酸盐/接枝共聚/丙烯酸类单体Key words
lignosulfonate/graft copolymerization/acrylic monomers分类
化学化工引用本文复制引用
李建法,宋湛谦,商士斌,吕金红..木质素磺酸盐与丙烯酸类单体的接枝共聚研究[J].林产化学与工业,2004,24(3):1-6,6.基金项目
国家"十五"科技攻关项目资助(2002BA517A-09-05) （2002BA517A-09-05）
