高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (12): 1617.

• 论文 • 上一篇    下一篇

核壳结构对聚苯乙烯/聚丙烯酸酯LIPN力学性能的影响

李玉玮, 王静媛, 刘瑞瑛, 汤心颐   

  1. 吉林大学化学系, 长春, 130023
  • 收稿日期:1992-01-29 修回日期:1992-05-30 出版日期:1992-12-24 发布日期:1992-12-24
  • 通讯作者: 李玉玮
  • 基金资助:

    国家自然科学基金

The Effect of Core-Shell Structure on the Mechanical Properties of PS/PA LIPN

LI Yu-Wei, WANG Jing-Yuan, LIU Rui-Ying, TANG Xin-Yi   

  1. Department of Chemistry, Jilin University, Changchun, 130023
  • Received:1992-01-29 Revised:1992-05-30 Online:1992-12-24 Published:1992-12-24

摘要: 本文系统研究了核壳结构对聚苯乙烯/聚丙烯酸酯(PS/PA)LIPN力学性能的影响.通过改变加料顺序、溶胀时间及双相互穿等多步聚合方法,考察了动态力学和力学性能变化的规律.结果表明,核壳结构随加料顺序的变化,导致力学性能相差十分悬殊.增加溶胀时间及采用多步聚合的双相互穿,能明显地提高互穿程度,使玻璃化温度发生内移,力学性能得到改善.

关键词: 互穿聚合物网络, 聚苯乙烯, 聚丙烯酸酯, 乳胶

Abstract: The effect of core-shell structure on the mechanical properties of PS/PA LIPN was systematically studied.Their dynamic mechanical and mechanical properties were investigated via changing feeding order and swelling time as well as using the method of multistage polymerization for interpene-tration.The results reveal that changing the feeding order leads to the change of core-shell structure.and then the great disparity in mechanical properties.The increase of swelling time and the use of multistage polymerization for interpenetrating evidently enhance the degree of interpenetration,therefore result in the inward shift of Tg,/sub> and the improvement of mechanical properties.

Key words: Interpenetrating polymer network, Polystyrene, Polyacrylate, Latex

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