反相乳液聚合法制备抗盐型两性共聚物P(AM-AA-AMPS-DAC)乳液  

Preparation of Amphoteric Copolymer P(AM-AA-AMPS-DAC)Emulsion with Salt Resistance by Inverse Emulsion Polymerization

作　　者：马西涛 王迎欣 马睿文 戴文伟 万娇 熊宗茜 黄剑英 吴亚芊 赵丰[1] MA Xitao;WANG Yingxin;MA Ruiwen;DAI Wenwei;WAN Jiao;XIONG Zongqian;HUANG Jianying;WU Yaqian;ZHAO Feng(Institute of Organic Functional Molecules,Jiangxi Science and Technology normal University,Nanchang Jiangxi 330013,China;College of Chemistry and Chemical Engineering,Jiangxi Science and Technology normal University,Nanchang Jiangxi 330013,China)

机构地区：[1]江西科技师范大学有机功能分子研究所,江西南昌330013 [2]江西科技师范大学化学化工学院,江西南昌330013

出　　处：《江西化工》2024年第2期64-67,71,共5页Jiangxi Chemical Industry

基　　金：江西省教育厅科学技术研究项目青年项目(GJJ201138);江西科技师范大学校博士科研启动基金项目(3000990507)。

摘　　要：本文以丙烯酰胺(AM)、丙烯酸(AA)、2-丙烯酰胺-2-甲基丙磺酸(AMPS)、丙烯酰氧乙基三甲基氯化铵(DAC)为单体,白油(W1-TB)为油相,Span-80和Tween-80为乳化剂,过硫酸铵(APS)为引发剂,采用反相乳液聚合法制备两性丙烯酰胺共聚物P(AM-AA-AMPS-DAC),重点探讨油水比、乳化剂用量、引发剂用量、单体用量以及p H值对共聚物表观黏度的影响。实验结果表明,当油水比为1∶1,乳化剂用量为3%(以体系总质量计,下同),引发剂用量为0.06%,单体用量为35%,初始引发温度为60℃,pH值为7时,制备的两性丙烯酰胺共聚物乳液在去离子水中的表观黏度值为150mPa·s,在矿化度为30000 mg/L盐水中的表观黏度值为60 mPa·s,其黏度保留率为40%,呈现出较好的抗盐性。Amphoteric acrylamide copolymer P(AM-AA-AMPS-DAC)was prepared by inverse emulsion polymerization,with white oil(W1-TB)as oil phase,Span-80 and Tween-80 as emulsifiers,and ammonium persulfate(APS)as initiator.Acrylamide(AM),acrylic acid(AA),2-acrylamido-2-methylpropanesulfonic acid(AMPS),and acryloyloyloxyethyltrimethylammonium chloride(DAC)were used as polymeric monomers.The effects of oil-water ratio,emulsifier dosage,initiator dosage,monomer dosage and pH value on the apparent viscosity of copolymer were studied as well.The results show that amphoteric acrylamide copolymer emulsion was prepared under the conditions of oil-water ratio of 1∶1,emulsifier dosage of 3%(in terms of the total mass of the system,the same below),initiator dosage of 0.06%,monomer dosage of 35%,initial initiation temperature of 60℃,and the pH value of 7.The amphoteric acrylamide copolymer emulsion showed good salt resistance with an apparent viscosity value of 150 mPa·s in deionised water and 60mPa·s in brine with degree of mineralisation of 30000 mg/L,with a viscosity retention of 40%.

关 键 词：反相乳液聚合 丙烯酰胺 抗盐 表观黏度 

分 类 号：TQ421[化学工程] TQ427