Page 44 - 精细化工2019年第8期
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第 36 卷第 8 期 精 细 化 工 Vol.36, No.8
201 9 年 8 月 FINE CHEMICALS Aug. 2019
功能材料
自乳化微乳液法两亲水溶性聚合物的制备及性能
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张世锋 ,李银涛 ,王善强 ,龙春华 ,刘星浩 ,周元林
(1. 环境友好能源材料国家重点实验室 材料科学与工程学院 西南科技大学,四川 绵阳 621010;2. 国
民核生化灾害防护国家重点实验室,北京 102205)
摘要:通过自乳化微乳液聚合的方法,以丙烯酰胺(AM)、丙烯酸(AA)、苯乙烯为原料(St),制备出两亲水
溶性聚合物,避免了传统的微乳液聚合中引入过多小分子乳化剂而导致后期处理过程复杂的问题,同时对自乳
化微乳液聚合机理进行探讨。红外和核磁结果表明:丙烯酰胺与丙烯酸和苯乙烯发生了共聚反应。DSC 结果表
明:生成的共聚物为嵌段结构。表面张力和黏度测试结果表明:当单体配比为 m(AM)∶m(AA)∶m(St)
=87.5∶10.0∶2.5 时,其表面张力和黏度可达 26.113 mN/m 和 1260 mPa·s,并解释了不同含量疏水单体存在时,
溶液中分子链的聚集状态。
关键词:自乳化;两性水溶性聚合物;嵌段共聚物;表面张力;黏度;功能材料
中图分类号:TQ316.33 文献标识码:A 文章编号:1003-5214 (2019) 08-1532-05
Preparation and Properties of Amphiphilic Water-soluble Polymers by
Self-emulsification Microemulsion Method
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ZHANG Shi-feng , LI Yin-tao , WANG Shan-qiang , LONG Chun-hua ,
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LIU Xing-hao , ZHOU Yuan-lin
(1. State Key Laboratory of Environmentally-friendly Energy Materials, College of Materials Science and Engineering,
Southwest University of Science and Technology, Mianyang 621010, Sichuan, China; 2. National Key Laboratory of
Nuclear and Biochemical Disaster Prevention, Beijing 102205, China)
Abstract: A self-emulsification microemulsion method was used to prepare an amphiphilic water-soluble
polymer using acrylamide (AM), acrylic acid (AA) and styrene (St) as raw materials. This preparation
method avoids the problem that too many small molecule emulsifiers are introduced into the traditional
microemulsion polymerization, which leads to the complex post-processing process. In addition, the
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mechanism of self-emulsified microemulsion polymerization was discussed. FTIR and HNMR results
showed that the copolymerization of AM, AA and St was carried out. The DSC result revealed that the
obtained copolymer was a block structure. The results of the surface tension tester and the numerical
viscosity test showed that when m(AM) : m(AA) : m(St) was 87.5 : 10.0 : 2.5, the surface tension and viscosity
of the prepared copolymer solution were 26.113 mN/m and 1260 mPa·s, respectively. Furthermore, the
molecular chain aggregation state of the copolymer with different content of hydrophobic monomer in
solution was explained.
Key words: self-emulsification; amphoteric water-soluble polymer; block copolymer; surface tension;
viscosity; functional materials
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放射性粉尘的控制与去除一直是核设施退役及 灵活机动的方法主要为喷淋湿法压制去污 。压制
核应急响应中面临的一个重要问题,目前常规较为 剂溶液的表面张力和黏度对放射性粉尘的去除有着
收稿日期:2019-01-24; 定用日期:2019-04-03; DOI: 10.13550/j.jxhg.20190087
基金项目:国家自然科学基金(11zg2119);国民核生化灾害防护国家重点实验室基金项目(SKLNBC2018-16);龙山学术人才科研
支持计划(8LZX631)
作者简介:张世锋(1994—),男,硕士生,E-mail:594497906@qq.com。联系人:李银涛(1981—),男,副研究员,博士,E-mail:
liyintao@swust.edu.cn;周元林(1963—),男,教授,E-mail:zhouyuanlin@swust.edu.cn。