蒙脱土改性聚丙烯酰胺的合成及性能研究  

Preparation and properties of Polyacrylamide(PAM) modified byorganic-montmorillonite

作　　者：卢鹉[1] 李泽文[1] 汪成[1] 陈九顺[1] 

机构地区：[1]黑龙江大学化学化工学院,黑龙江哈尔滨150080

出　　处：《黑龙江大学自然科学学报》2002年第2期103-105,共3页Journal of Natural Science of Heilongjiang University

摘　　要：采用聚合物/蒙脱土纳米级复合材料的制备方法,用两种季铵盐阳离子对蒙脱土进行插层,获得有机蒙脱土,然后用原位聚合的方法制备了改性聚丙烯酰胺并对其结构、性能进行了测定。发现这种改性聚丙烯酰胺与未改性的聚丙烯酰胺相比粘度提高了37.5%,并且在极低盐浓度下其粘度随盐的浓度的增大而增高,表现出“反盐效应”。Polyacrylamide (PAM) modified by organic-montmorillonite was prepared via soluble polymerization acrylamide monomer in the presence of montmorillonite which was intercalated with an ammonium salt-in-situ polymerization. The modified PAM exhibits significant increase in intrinsic viscosity as well as 'anti - salt -effect' characteristics, whose viscosity increased by 37.5% compared with PAM.

关 键 词：蒙脱土 改性 聚丙烯酰胺 提高粘工 “反盐效应” 

分 类 号：O631.11[理学—高分子化学]