中华医学超声杂志

应用化学 ›› 1995, Vol. 0 ›› Issue (4): 70-73.

• 研究论文 • 上一篇    下一篇

聚醚中聚合物分散粒子的形态对体系稳定性和粘度的影响

方道斌1, 郭睿威1, 封彤波2   

  1. 1. 天津大学应用化学系, 天津 300072;
    2. 空军第一研究所, 北京
  • 收稿日期:1995-01-16 修回日期:1995-04-16 出版日期:1995-08-10 发布日期:1995-08-10
  • 基金资助:
    天津自然科学基金资助课题

Influence of Morphologies of Dispersed Particles in Polyether Polyol on Its Stability and Viscosity

Fang Daobin1, Guo Ruiwei1, Feng Tongbo2   

  1. 1. Department of Applied Chemistry, Tianjin University, Tianjin 300072;
    2. The First Research Institute of Airforce, Beijing
  • Received:1995-01-16 Revised:1995-04-16 Published:1995-08-10 Online:1995-08-10

PDF

341

被引次数

7 | 3

摘要： 以苯乙烯和丙烯腈在聚醚中的分散聚合制备了聚合物聚醚(POP).用电镜观察了不同合成条件下分散粒子的形态.发现工艺因素可改变分散粒子的形态,从而影响POP的性质,颗粒聚集是影响体系稳定性和粘度的主要因素,在适宜的合成条件下,可获得稳定的表面光滑的孤立圆球,相应的POP具有低的粘度.

关键词: 聚醚多元醇, 分散聚合, 苯乙烯, 丙烯脂, 大分子单体, 粘度, 电镜

Abstract: In this paper,the morphologies of polymer particles in polyether polyol(POP)have been observed,which was prepared from styrene and acrylonitrile by using dispersionpolymerization in polyether polyol under various conditions.It has been found that techno-logical conditions can change the morphologies of the particles and then affect the propertiesof POP.Aggregation of the particles is a main factor that influences the stability and viscosi-ty of the dispersion. Separate spheres with smooth surface can be obtained under suitableconditions and the corresponding POP is of lower viscosity.

Key words: polyether polyol, dispersion polymerization, styrene, acrvlonitrile, macromono-mer, viscosity, electron microscope

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