高等学校化学学报

高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (11): 1424.

• 论文 • 上一篇    下一篇

苯乙烯-丙烯酸丁酯无皂乳液聚合动力学及TEM分析

戴李宗, 邹友思, 潘容华   

  1. 厦门大学化学系, 厦门, 361005
  • 收稿日期:1991-11-29 修回日期:1992-03-05 出版日期:1992-11-24 发布日期:1992-11-24
  • 通讯作者: 戴李宗

The Kinetics of Emulsifier-Free Emulsion Polymerization of Styrene-Butyl Acrylate and TEM Analysis

DAI Li-Zong, ZOU You-Si, PAN Rong-Hua   

  1. Department of Chemistry, Xiamen University, Xiamen, 361005
  • Received:1991-11-29 Revised:1992-03-05 Online:1992-11-24 Published:1992-11-24

PDF (PC)

被引次数

14

摘要： 讨论了温度对十一烯酸钠存在下的苯乙烯、丙烯酸丁酯无皂乳液聚合体系pH值的影响,描述了聚合反应动力学曲线,求出不同温度下的聚合反应速率常数.利用TEM对几种乳化剂体系的乳液聚合进行比较后发现,在无皂乳液聚合体系中,乳胶粒的均匀性和粘连、形变等都得到了控制.由于体系中不存在游离乳化剂,乳液的稳定性得到提高.

关键词: 动力学, 透射电镜, 无皂乳液聚合

Abstract: The influence of temperature on pHof system of emulsifier-free emulsion polymerization of styrene-butyl acrylate in the presence of sodium undecylenate is discussed.The curve of polymerization kinetics is described.The reaction rate constant(kP)at different temperatures is calculated.Using TEMto compare emulsion polymerization of several emulsifier system,we found that the homogeneity and adhesion and deformation of the particles of emulsion could be controlled.Because there are no free emulsifier,the stability of emulsion is raised.

Key words: Kinetics, TEM, Emulsifier-free emulsion Dolvmerization

TrendMD: