淀粉接枝AM/SSS/DAC调剖剂的制备与性能  

Preparation and Properties of Starch Grafted-poly(AM/SSS/DAC) Profile Control Agent

作　　者：王娟[1,2] 万涛[1,2] 孙自顺[1,2] 王力[1,2] 张海波[1,2] 熊磊[1,2] 

机构地区：[1]成都理工大学矿产资源化学高校重点实验室,四川成都610059 [2]成都理工大学材料与化学化工学院,四川成都610059

出　　处：《广州化工》2012年第8期70-73,共4页GuangZhou Chemical Industry

基　　金：中国博士后科学基金特别资助项目(No.201003688);中国博士后科学基金项目(No.20070421140);成都理工大学优秀创新团队培育计划项目

摘　　要：以过硫酸铵和亚硫酸氢钠为氧化还原引发剂,N,N-亚甲基双丙烯酰胺(NMA)为交联剂,采用水溶液聚合将淀粉、丙烯酰胺(AM)、丙烯酰氧基三甲基氯化铵(DAC)和苯乙烯磺酸钠(SSS)接枝共聚制备了淀粉接枝聚合物调剖剂,探讨了交联剂用量、苯乙烯磺酸钠用量对淀粉接枝聚合物调剖剂吸水速率、凝胶强度、抗剪切性能和耐热性能的影响,并通过扫描电镜(SEM)、XRD衍射对淀粉接枝聚合物调剖剂的形貌和结构进行表征。结果表明所合成的淀粉接枝聚合物调剖剂具有较好的吸水率、吸水速率、凝胶强度、抗剪切性能和耐热性能。XRD证实了淀粉接枝聚合物调剖剂的结构,SEM表明淀粉接枝后原来淀粉颗粒的球形和椭圆形结构消失,形成了具有许多大小不等微孔的凝胶团聚体。Starch grafted -poly （AM/SSS/DAC） copolymer, used as profile control agent, was prepared by graft co- polymerization among starch, acrylamide （ AM）, acryloyloxyethyhrimethlammonium chloride （DAC） and sodium 4 - sty- renesulfonate （SSS） in aqueous solution, using ammonium persulfate and sodium bisulfite as redox initiators and N, N＇- methylenebisacrylamide （NMA） as crosslinker. Factors influencing water absorption rate, gel strength, shear - resistance and thermo -resistance of the starch graft copolymer profile control agent, such as crosslinker amount and SSS amount were investigated. Morphologies and structure of the starch graft copolymer profile control agent were characterized by way of SEM and X - ray diffraction （XRD）. The starch graft copolymer profile control agent showed good water absorbency, water absorption rate, gel strength, shear - resistance and thermo - resistance. X - ray diffraction results indicated the structure of starch graft - copolymer. SEM data showed that spherical and oval starch particles disappeared and porous gel aggregates with many microporous holes of different sizes were formed after starch graft modification.

关 键 词：淀粉 接枝 调剖剂 吸水率 溶液聚合 

分 类 号：O645.1[理学—物理化学]