物理化学学报 >> 1995, Vol. 11 >> Issue (09): 831-835.doi: 10.3866/PKU.WHXB19950914

研究简报 上一篇    下一篇

非离子表面活性剂体系的液晶与自发乳化(I)

戴乐蓉,苏晓燕   

  1. 北京大学物理化学研究所，北京 100871
  • 收稿日期:1994-07-13 修回日期:1994-11-29 发布日期:1995-09-15
  • 通讯作者:

Liquid Crystal and Spontaneous Emulsification in Nonionic Surfactant System(I)

Dai Le-Rong,Su Xiao-Yan   

  1. Institute of Physical Chemistry,Peking University,Beijing 100871
  • Received:1994-07-13 Revised:1994-11-29 Published:1995-09-15
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关键词: 非离子表面活性剂, 溶致液晶

Abstract:

The formation and structure of liquid crystal in Tween 80, Tween 85, Tween 85-Span 80 and H2O systems were studied. At room temperature, the results of low angle X-ray diffraction showed that hexagonal liquid crystal was formed in Tween 80-H2O system, whereas in Tween 85- H2O and Tween 80-Span 80 (7:3)-H2O systems lamellar liquid crystal was formed. In two lamellar crystal phases the thickness of amphiphilic layer was 66.8Å and 68.0Å respectively. The penetration of water in Tween 85 liquid crystal phase was higher than in Tween 80-Span 80 liquid crystal phase.

Key words: Nonionic surfactant, Lyotropic liquid crystal