物理化学学报 >> 1991, Vol. 7 >> Issue (06): 703-707.doi: 10.3866/PKU.WHXB19910613

研究简报 上一篇    下一篇

直链醇链长对层状液晶结构与稳定性的影响

郭荣   

  1. 扬州师院化学系,扬州 225002
  • 收稿日期:1990-05-15 修回日期:1990-12-13 发布日期:1991-12-15
  • 通讯作者: 郭荣

The Effects of Chain Length of Straight Chain Alcohol on the Strucutre and Stability of Lamellar Liquid Crystal

Guo Rong   

  1. Chemistry Department, Yangzhou Teachers College, Yangzhou 225002
  • Received:1990-05-15 Revised:1990-12-13 Published:1991-12-15
  • Contact: Guo Rong

关键词: 层状液晶, 直链醇, 链长, 稳定性, 小角X射线衍射

Abstract: The measurements of low angle X-ray diffraction showed that the degression of d_0 of lamellar liquid crystal with increase of weight ratio of C_nOH/SDS decreased with increase of the carbon chain length of alcohol used aseosurfactant. The values of d_0 increased with carbon number of alcohol n at certain weight ratio of C_nOH/SDS. The increase of interlayer spacing d with n was related with the increase of d_0 and the decrease of solvent penetration in lamellar liquid crystal under the conditione of weight ratio of C_nOH/SDS and water content. Both the measurements of low angle X-ray diffraction and the phase diagram behavior showed that the stability of lamellar liquid crystal increased with the chain length of alcohol.

Key words: Lamellar liquid crystal, Straight chain alcohol, Chain length, Stability, Low angle X-ray diffraction