P(AMPS-MBA)-g-P(AM-DEAM)的合成与温敏行为  

Synthesis and Thermosensitive Behavior of P(AMPS-MBA)-g-P(AM-DEAM) Copolymer

作　　者：温建泰 罗明望 陈璐鑫 Alain Pierre Tchameni 赵林[1,2] Jiantai Wen;Mingwang Luo;Luxin Chen;Alain Pierre Tchameni;Lin Zhao(National Engineering Laboratory of Oil and Gas Drilling Technology,School of Petroleum Engineering,Yangtze University;Hubei Key Laboratory of Oil and Gas Drilling and Production Engineering,School of Petroleum Engineering,Yangtze University,Wuhan 430100,China)

机构地区：[1]油气钻井技术国家工程实验室防漏堵漏研究室长江大学石油工程学院 [2]湖北省油气钻采工程重点实验室长江大学石油工程学院,湖北武汉430100

出　　处：《高分子材料科学与工程》2021年第7期35-41,共7页Polymer Materials Science & Engineering

基　　金：高分子材料工程国家重点实验室开放课题(sklpme2017-4-07)。

摘　　要：以2-氨基乙硫醇盐酸盐(AET)为链转移剂,丙烯酰氯为链端转化剂合成了聚(丙烯酰胺-co-N,N-二乙基丙烯酰胺)(Poly(AM-co-DEAM),PADA)温敏大单体,再与2-丙烯酰胺基-2-甲基丙磺酸钠(NaAMPS)和N,N’-亚甲基双丙烯酰胺(MBA)通过自由基共聚,得到以PADA为侧链的温敏增稠共聚物(CGPADA)。采用核磁共振、元素分析确定了PADA与CGPADA的分子结构;研究了共聚物溶液的温敏增稠特性,并进一步考察了共聚物质量浓度、剪切速率和盐浓度等因素对其温敏增稠性能的影响。结果表明,当共聚物溶液达到一定浓度时,其具有优良的温敏增稠性,且增稠效果随共聚物质量浓度及外加盐浓度的增加而提升。Poly(acrylamide-co-N,N-diethylacrylamide)(Poly(AM-co-DEAM),PADA)macromolecular monomer prepared from 2-aminoethyl thiol hydrochloride(AET)used as chain transfer agent and acryloyl chloride as chain-end conversion agent,respectively,was copolymerized with sodium 2-acrylamido-2-methylpropane sulfonic acid(NaAMPS)and cross-linking N,N’-methylenebisacrylamide(MBA)to obtain a novel thermo-sensitive copolymer(CGPADA).CGPADA was synthesized by free-radical copolymerization under optimal conditions.The molecular structure of CGPADA was evidenced by 1H-NMR and elemental analysis.Consecutively,the effects of copolymer concentrations,shear rates and salt concentrations on the thermo-thickening behavior were explored.An abrupt macroscopic property above the critical association temperature is noticed when the copolymer aqueous solution reaches a certain concentration.Furthermore,the magnitude of the thermo-thickening effect could be regulated using external factors,such as shear rate and salinity.

关 键 词：温敏大单体 自由基共聚 温敏增稠 

分 类 号：TQ316.322[化学工程—高聚物工业]