光辅助引发制备两性离子型P(AMDACAANa)共聚物

张玉， 刘福胜*， 于世涛

（青岛科技大学 化工学院，山东 青岛 266042）

摘要： 采用光辅助引发技术，通过水溶液聚合法制备丙烯酰胺(AM)、丙烯酰氧乙基三甲基氯化铵(DAC)和丙烯酸钠(AANa)的共聚物P(AMDACAANa)。考察了m(DAC+AANa)∶m(AM)、引发温度、单体（AM+DAC+AA）质量分数、反应液pH值、硫脲质量分数、偶氮类引发剂质量分数等因素对聚合反应结果的影响，并与传统的引发剂引发聚合结果进行了对比。在m(DAC+AANa)∶m(AM)=15∶85，引发温度20 ℃，单体质量分数32%，pH值6，硫脲质量分数10%，偶氮类引发剂质量分数0010 0%的条件下，得到了溶解时间66 min，特性黏数为1356 dL·g-1的聚合物，并用FTIR对其结构进行了表征。

关键词： 光辅助引发； 丙烯酰氧乙基三甲基氯化铵； 两性离子型聚丙烯酰胺

中图分类号： TQ 316.31       文献标志码： A

Preparation of Amphoteric Ionic Polyacrylamide P(AMDACAANa) Assisted by Photoinitiation

ZHANG Yu, LIU Fusheng, YU Shitao

(College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)

Abstract: Amphoteric ionic polyacrylamide P(AMDACAANa) was prepared in aqueous solution using acrylamide(AM), acryloyloxyethyl trimethyl ammonium chloride(DAC) and sodium acrylate(AANa) as materials by assistance of photoinitiation. The effects of m(DAC+AANa)∶m(AM ), initiation temperature, monomer(AM+DAC+AA) concentration, pH, dosage of thiourea and the mass fraction of azocompound on the intrinsic viscosity and solubility property of product were studied. And compared the result with the traditional initiator. Under the conditions of m(DAC+AANa)∶m(AM )=15∶85, initiation temperature 20 ℃, monomer concentration 32%, pH=6, the dosage of thiourea 060%, azocompound concentration 0010 0%, the intrinsic viscosity of polymer was 1356 dL·g-1 and the dissolving time was 66 min, the structure of copolymer was characterized by FTIR.

Key words:  photo assisted initiation; acryloyloxyethyl trimethyl ammonium chloride; P(AMDACAANa)

收稿日期： 20130711

作者简介： 张玉(1987—)，女，硕士研究生.       *通信联系人.