物理化学学报 >> 1999, Vol. 15 >> Issue (12): 1060-1063.doi: 10.3866/PKU.WHXB19991202

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聚[甲基丙烯酸（磺酸钠烷基酯）]高分子溶致液晶

戴乐蓉, 苏晓燕, 陈慧英, 吴佩强   

  1. 北京大学化学与分子工程学院，北京 100871
  • 收稿日期:1999-09-08 修回日期:1999-10-19 发布日期:1999-12-15
  • 通讯作者: 戴乐蓉

Lyotropic Liquid Crystal of Poly(Sodium Sulfoalky Methacrylate)

Dai Le-Rong, Su Xiao-Yan, Chen Hui-Ying, Wu Pei-Qiang   

  1. College of Chemistry and Molecular Engineering,Peking University,Beijing 100871
  • Received:1999-09-08 Revised:1999-10-19 Published:1999-12-15
  • Contact: Dai Le-Rong

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关键词: 溶致液晶, 聚[甲基丙烯酸（ω磺酸钠烷基酯）]

Abstract:

The formation and structure of lyotropic liquid crystal of poly(sodium sulfoalkyl methacrylates)(PSSRMA) with different alkyl side chain length were studied. It is showed that the lyotropic liquid crystal could be formed for PSSRMA-H2O system. The d-spacings of these polymers are in the range of 16.35-12.26 nm, which are much more than those formed by ordinary amphiphilic molecules. The micelles made up of single chain of PSSRMA polymers were arranged in order of hexagon or lamella to form lyotropic liquid crystal phase .The shorter the side chain of the PSSRMA, the longer the d-spacing of the formed liquid crystal and vice versa. It is supposed that the electrostatic repulsion between two neighboring charged groups will be stronger for the shorter side chain due to a closer molecular arrangement, making the polymer chain extending and less flexible.

Key words: Lyotropic liquid crystal, Poly(Sodium Sulfoalky Methacrylate)