磺酸基甜菜碱共聚物的合成及其界面活性研究  

Synthesis and interfacial properities of sulfobetaine-PEG copolymer

作　　者：刘友权[1] 郭延芝[2] 唐永帆[1] 孙川[1] 原励[1] 张燕[1] LIU You-quan;GUO Yan-zhi;TANG Yong-fan;SUN Chuan;YUAN Li;ZHANG Yan(Research Institute of Natural Gas Technology,Petro China Southwest Oil&Gas Field Company,Chengdu,610213,China;College of Chemistry,Sichuan University,Chengdu 610064,China)

机构地区：[1]中国石油西南油气田分公司天然气研究院,四川成都610213 [2]四川大学化学学院,四川成都610064

出　　处：《化学研究与应用》2021年第1期182-186,共5页Chemical Research and Application

基　　金：中国石油天然气股份有限公司重大科技专项“西南油气田天然气上产300亿立方米关键技术研究与应用-四川盆地深层高温高压含硫气藏储层改造技术研究与应用-深层高温储层改造工作液体系研究”(2016E-0609)。

摘　　要：以N-[3-(二甲氨基)丙基]丙烯酰胺与1,3-丙磺酸内酯为原料,制备了3-[(3-丙烯酰胺)丙基-二甲氨基]丙磺酸钠甜菜碱型单体,并将其与丙烯基聚乙二醇通过自由基聚合物反应合成了磺酸基甜菜碱和聚乙二醇的共聚物。利用红外光谱(FT-IR)和凝胶渗透色谱仪(GPC)对共聚物进行表征,并考察了在高浓度CaCl2条件下该共聚物作为转向剂的界面性质变化。结果表明,在高盐的水溶液中,该共聚物仍然具有很好的稠化能力,是一种潜在的抗Ca^2+稠化剂。Sodium betaine monomer of 3-((3-acrylamidopropyl)dimethylammonio)propane-1-sulfonate,sodium salt was firstly synthesized from N-(3-(dimethylamino) propyl)acrylamide and 1,3-propanesulfonic acid lactone.Then the monomer was used to synthesized copolymer of betaine sulfonate with acryloyl polyethylene glycol via free radical polymerization.This copolymer of betaine sulfonate was characterized by FT-IR,and GPC,and its interfacial properties as diverting agent were investigated at high concentration of CaCl2.The results indicated that the copolymer still had good thickening ability in high salt aqueous solution and was a potential anti-Ca(Ⅱ) thickener.

关 键 词：异丙酰胺 甜菜碱 耐盐 磺酸聚合物 

分 类 号：O632[理学—高分子化学]