中华医学超声杂志

应用化学 ›› 1998, Vol. 0 ›› Issue (6): 16-20.

• 研究论文 • 上一篇    下一篇

核-壳结构聚丙烯酸酯-聚氨酯微乳液膜的相行为

董岸杰, 冯士有, 万同, 孙多先   

  1. 天津大学化工学院医学及环境友好材料研究所 天津300072
  • 收稿日期:1998-05-04 修回日期:1998-09-18 出版日期:1998-12-10 发布日期:1998-12-10

Phase Behaviour of CoreShell Type Polyacrylate—Polyurethane Microemulsion Cast Films

Dong Anjie, Feng Shiyou, Wan Tong, Sun Duoxian   

  1. Institute of Medical and Environmental Friendly Materials, Institute of Chemical Engineering, Tianjin University, Tianjin 300072
  • Received:1998-05-04 Revised:1998-09-18 Published:1998-12-10 Online:1998-12-10

PDF

583

被引次数

4

摘要： 用动态力学、红外光谱和差热分析方法研究了非交联核-壳结构聚丙烯酸酯-聚氨酯(PAC-PU)微乳液膜的相行为。结果表明：核壳间的氢键增强了壳层软硬段间的相分离,同时破坏了硬段相中的短程有序结构,但增强了核壳相容性.

关键词: 聚丙烯酸酯-聚氨酯微乳液膜, 相分离, 核-壳结构

Abstract: The phase separation of the core-shell type polyacrylatepolyurethane cast films has been studied by mechanodynamic test, IR and DSC methods. The results indicated that the existence of hydrogen bondings between acetone C=O in the core and —NH in the shell improves the phase separation of the soft and hard segments in the shell, and also improves the compatibility of the core and shell, breaking the short range order of the hard segments.

Key words: polyacrylate-polyurethane microemulsion film, phase separation, core-shell structure

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