淀粉与DADMAC-AM接枝共聚反相胶乳  

GRAFT COPOLYMERIZATION ONTO STARCH WITH DADMAC AM IN INVERSE EMULSION

作　　者：卢绍杰[1] 孙希明[1] 刘瑞贤[1] 卫乃勤[1] 杨光中[1] 

机构地区：[1]天津大学化学系,天津310072

出　　处：《高分子材料科学与工程》1999年第5期52-55,共4页Polymer Materials Science & Engineering

摘　　要：以淀粉、丙烯酰胺（ Ａ Ｍ）、二烯丙基二甲基氯化铵（ Ｄ Ａ Ｄ Ｍ Ａ Ｃ）为原料，采用氧化还原引发体系，通过反相乳液聚合技术，合成接枝共聚物。讨论了合成条件对产品性能的影响及在造纸中的应用。结果表明，改变投料方式、控制两种单体适当的配比，可以获得较高分子量和阳离子度的稳定胶乳产品。通过造纸滤水性试验发现，当将本品用量为 ０．０５％ 加入造纸系统，填料留着率与目前普遍采用的两种试剂——阳离子淀粉和阳离子聚丙烯酰胺相比，数值都高。因此，它是造纸业很好的助留助滤剂。A graft copolymer was synthesized by copolymerization of starch with diallyldimethyl ammoniumchloride(DADMAC) and acrylamide(AM). The copolymerization was carried out using redox initiator inverse emulsion. This article discusses the effect of reaction conditions on graft copolymerization and use as additives in papermaking was investigated. Experiments show that stable latex which have higher molecular weight and higher cationic degree is made by changing monomer addition method and controling ratio of DADMAC to AM. The filler retention are higher than cationic starch and cationic polyacrylamide when 0.05% graft starch is added to the papermaking system. So it is a good filler retention and drainage aid in papermaking.

关 键 词：淀粉 反相胶乳 助滤剂 造纸 接枝共聚 DADMAC-AM 

分 类 号：TS727[轻工技术与工程—制浆造纸工程] TQ316.343[化学工程—高聚物工业]