应用化学 ›› 1988, Vol. 0 ›› Issue (6): 39-43.

• 研究论文 • 上一篇    下一篇

聚醋酸乙烯酯/聚丙烯酸甲酯互穿网络聚合物的研究 Ⅱ.强迫互容效应及形态结构

毕喜平, 李滨耀, 张东华   

  1. 中国科学院长春应用化学研究所
  • 收稿日期:1987-08-10 修回日期:1987-11-05 出版日期:1988-12-10 发布日期:1988-12-10
  • 基金资助:
    国家自然科学基金;中国科学院科学基金

STUDY OF POLY(VINYL ACETATE)/POLY(METHACRYLATE) INTERPENETRATING POLYMER NETWORKS Ⅱ. FORCED COMPATIBILITY AND MORPHOLOGY

Bi Xiping, Li Binyao, Zhang Donghua   

  1. Changchun Institute of Applied Chemistry, Academia Sinica
  • Received:1987-08-10 Revised:1987-11-05 Published:1988-12-10 Online:1988-12-10

摘要: 用分步法合成了交联密度不同的聚醋酸乙烯酯/聚丙烯酸甲酯互穿网络聚合物(PVAc/PMA-IPN),用DMS,TEM和SAXS等方法进行表征。发现随交联密度的增加,体系的Tg,转变由两个逐渐变为一个,清楚显示出强迫互容的贡献。模量实验值与 Davies 方程计算值的比较表明,所研究的IPN是一个双相连续体系,相区尺寸约为100Å。

关键词: 互穿网络聚合物, 互容性, 形态, 聚醋酸乙烯酯, 聚丙烯酸甲酯

Abstract: Sequential poly(vinyl acetate)/polyi (methacrylate) interpenetrating polymer networks (PVAc/PMA-IPNs)were synthesized. By increasing crosslinking density of either component, the two glass transition temperatures corresponding to the individual component were merging into one, due to the increased forced compatibility. The effect of network I (PVAc) appeared more obvious. Comparison between experimental and theoretical values of modulus suggested the existence of a dual phase continuity. TEM photographs showed about 100Å domains.

Key words: IPN, Compatibility, Polyvinylacetate, Polymethacrylate, Morphology