AM/AA/NAPA/NMQS两性离子共聚物的合成及表征  

Synthesis and characterization of AM/AA /NAPA /NMQS zwitterionic copolymer

作　　者：苟绍华[1,2] 蔡潇潇[2] 叶仲斌[1,2] 刘曼[2] 蒋文超[2] 公维维 

机构地区：[1]油气藏地质及开发工程国家重点实验室,西南石油大学,四川成都610500 [2]西南石油大学化学化工学院,四川成都610500

出　　处：《化学研究与应用》2014年第8期1255-1259,共5页Chemical Research and Application

基　　金：四川省科技支撑计划项目(2012FZ0130)

摘　　要：以丙烯酰胺(AM)、丙烯酸(AA)、N-烯丙基苯乙酰胺(NAPA)及N-甲基-N-烯丙基吗啉溴盐(NMQS)为原料,氧化还原体系下合成了一种水溶性两性离子共聚物AM/AA/NAPA/NMQS。最佳反应条件为:m(AM):m(AA)=4.0:6.0,NAPA 0.3 wt%,NMQS 0.15 wt%,引发剂0.1 wt%,pH=6,反应温度35℃,单体总浓度25wt%。对AM/AA/NAPA/NMQS四元共聚物进行了IR、1H NMR、SEM、特性粘数表征。当NaCl浓度为12000mg·L-1,CaCl2或MgCl2浓度为1200 mg·L-1时,溶液黏度保留率分别为13.7%、11.8%和12.7%;温度120℃时,溶液黏度保留率达到30.9%;当剪切速率在170 s-1时,溶液黏度保留率为24.6%。A zwitterionic copolymer based on acrylamide（AM）,acrylic acid（AA）,N-allylphenylacetamide（NAPA）and N-methyl-N-allylmorpholinium bromide（NMQS）was synthesized using（NH4）2S2O8-NaHSO3 as initiator. The optimal conditions were estab-lished such as m（AM）：m（AA）=4. 0：6. 0,NAPA 0. 3 wt%,NMQS 0. 15 wt%,initiator 0. 1 wt%,pH=6,reaction temperature 35℃ and total monomers concentration 25 wt%. The AM/AA/NAPA/NMQS was characterized by IR,1 H NMR,SEM and intrinsic viscosity. The viscosity retention ratio of the copolymer was 13. 7%,11. 8%and 12. 7%when NaCl,CaCl2 or MaCl2 concentration was 12000 mg＆#183;L-1,1200 mg＆#183;L-1 and 1200 mg＆#183;L-1. With up to 30. 9%（120℃）and 24. 6%（170 s-1）viscosity retention ratio were ob-tained through heat resistance and shear tolerance tests,respectively.

关 键 词：两性离子共聚物 耐温 耐盐 抗剪切 

分 类 号：O632.52[理学—高分子化学]