高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (7): 1237.

• 研究论文 • 上一篇    下一篇

超声辐照引发MMA微乳液聚合

廖勇勤, 王琪, 王良文   

  1. 四川大学高分子研究所高分子材料工程国家重点实验室, 成都 610065
  • 收稿日期:2000-08-02 出版日期:2001-07-24 发布日期:2001-07-24
  • 通讯作者: 王 琪(1949年出生),女,教授,主要从事高分子力化学、高分子间复合物、聚合物共混和复合材料等研究.
  • 基金资助:

    国家自然科学基金(批准号:29974020);教育部科学技术重点项目基金(教育部科技司136号文件)

Ultrasonic Induced Microemulsion Polymerization of MMA

LIAO Yong-Qin, WANG Qi, WANG Liang-Wen   

  1. State Key Laboratory of Polymer Material Engineering, Institute of Polymer Research, Sichuan University, Chengdu 610065, China
  • Received:2000-08-02 Online:2001-07-24 Published:2001-07-24

摘要: 研究了超声波引发甲基丙烯酸甲酯(MMA)的微乳液聚合.辐照40min时单体转化率高达90%.透射电镜观察发现,PMMA微乳液平均粒径为36.5nm,粒径分布窄,表明超声波引发是制备PMMA微乳液的有效方法.采用分光光度计对微乳液聚合过程中乳胶粒的形成和大小进行了间接表征,研究了超声功率输出、乳化剂、助乳化剂、单体和引发剂对MMA微乳液聚合的影响.

关键词: 超声辐照引发, MMA, 微乳液聚合

Abstract: In this work, ultrasonic induced microemulsion polymerization of MMAwas successfully performed and the monomer conversion reached about 90% in 40 min. TEMobservation showed that the average diameter of PMMAlatex was 365 nm with a narrow distribution. Several influencing factors such as power output, surfactant, co emulsifier, monomer and chemical initiator were investigated detailedly from the view of formation of microemulsion and the growth of latex by spectraphotometry.

Key words: Ultrasonic initiation, MMA, Microemulsion polymerization

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