应用化学 ›› 1998, Vol. 0 ›› Issue (1): 33-36.

• 研究论文 • 上一篇    下一篇

含有机硅三元多嵌段共聚物表面的研究

史林启, 许观藩, 郑国栋, 冯之榴   

  1. 中国科学院长春应用化学研究所 长春 130022
  • 收稿日期:1997-05-05 修回日期:1997-09-15 出版日期:1998-02-10 发布日期:1998-02-10
  • 基金资助:
    国家自然科学基金

Study on the Surface of Segmented Ternary Copolymers [PSF-PDMS-PHS]n

Shi Linqi, Xu Guanfan, Zheng Guodong, Feng Zhiliu   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1997-05-05 Revised:1997-09-15 Published:1998-02-10 Online:1998-02-10

摘要: 对聚砜(PSF)、聚二甲基硅氧烷(PDMS)和聚对羟基苯乙烯(PHS)的三元多嵌段共聚物[PSF-PDMS-PHS]n的形态和表面组成进行了研究,结果表明溶液成膜后,组成不同的聚合物样品的表面都有有机硅(PDMS)的富集.在用溶剂处理后,富集于膜表面的有机硅含量与所用溶剂的溶度参数有关,一般均下降,但是用水处理后,表面层有机硅的含量却增加.

关键词: 聚砜, 聚二甲基硅氧烷, 聚对羟基苯乙烯, 三元多嵌段共聚物, 表面富集, 溶剂处理

Abstract: The surface properties of the segmented ternary copolymers [PSF-PDMS-PHS]n have been investigated by XPS, DMA, TEM and SEM techniques, where PSF:polysulfone, PDMS: polydimethylsiloxane, PHS: poly-p-hydroxystyrene.It is shown thatfor all copolymers of different composition PDMS soft segments were enriched on the surfaceand the enrichment increased with the increase of the content of PDMS of the copolymer, butdecreased with the solubility parameter of the solvents tested.Treating with H2O gave high-er enrichment of PDMS than that of the blank.

Key words: polysulfone, polydimethylsiloxane, polyhydroxystyrene, segmented ternary copolymer, surface enrichment, solvent treatment