高等学校化学学报

高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (7): 983.

• 研究论文 • 上一篇    下一篇

小角X射线散射法研究CH2Cl2、CHCl3和CCl4对PE液晶结构的影响

孙润广, 张静, 强志军, 王德华, 王子浩   

  1. 陕西师范大学实验中心, 中国科学院理论物理研究所 西安 710062
  • 收稿日期:1992-09-26 修回日期:1992-12-25 出版日期:1993-07-24 发布日期:1993-07-24
  • 通讯作者: 孙润广.
  • 作者简介:第一作者:男, 35岁, 讲师.
  • 基金资助:

    陕西师范大学青年基金

A Study of the Influences of CH2Cl2, CHCl3, CCl4 on the PE Liquid Crystal Structure by Means of SAXS

SUN Run-Guang, ZHANG Jing, QIANG Zhi-Jun, WANG De-Hua, WANG Zi-Hao   

  1. Experimental Center of Shanxi Normal University, Xi'an, 710062, Institute of Theoretical Physics Academia Sinica
  • Received:1992-09-26 Revised:1992-12-25 Online:1993-07-24 Published:1993-07-24

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摘要： 采用小角X射线散射法研究了CH2Cl2、CHCl3和CCl4对磷脂酰乙醇胺(PE)液晶结构影响的机理.CH3Cl2、CHCl3和CCl4对PE液晶结构影响的差别主要是其空间旋转电子云密度分布形状不同所致.空间旋转电子云密度分布呈椭球状的物质有使PE液晶形成六角形H1相的趋向;呈圆锥状的物质有诱发PE液晶形成立方六角相的趋向;呈球状的物质有使PE液晶形成片层立方相的趋向.

关键词: 生物膜, 液晶态, 小角X射线散射, 磷脂酰乙醇胺

Abstract: In this paper, the influences of CH2Cl2, CHC13 and CCl4 on the liquid crystal structure of phosphatidythanolamine(PE) have been investigated by using the method of SAXS (the small angle X-ray scattering) respectively.The experimental results show the structure of the PEliquid crystal phase is primarily influenced by space-spinning electronic cloud density distribution of CH2Cl2, CHCl3 and CCl4.The compounds whose space-spinning electronic cloud density distribution assumes spinning oval ball in shape give the mechanism that makes the PEliquid crystal state to form hexagonal Iphase; The compounds whose space-spinning electronic cloud density distribution assumes spinning taper in shape give the mechanism that makes the PEliquid crystal state to form cubic-hexagonal phase.The compounds whose space-spinning electronic cloud density distribution assumes spinning ball in shape give the mechanism that makes the PEliquid crystal state to form lamemller-cube phase.

Key words: Biomembranes, Liquid crystal state, Small angle X-ray scattering (SAXS), Phos-phatidylthanolamine

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