A BIAXIAL LYOTROPIC NEMATIC PHASE IN DILUTE-SOLUTIONS OF SODIUM LAURYL SULFATE-1-HEXADECANOL-WATER

被引：16

作者：

HO, CC ^{[1
]}

GOETZ, RJ ^{[1
]}

ELAASSER, MS ^{[1
]}

机构：

[1] LEHIGH UNIV,INST EMULS POLYMERS,DEPT CHEM ENGN,CTR POLYMER SCI & ENGN,111 RES DR,BLDG A,BETHLEHEM,PA 18015

来源：

LANGMUIR | 1991年 / 7卷 / 04期

关键词：

D O I：

10.1021/la00052a007

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Alyotropic nematic phase of sodium lauryl sulfate (SLS)-1-hexadecanol (HOH)-water is examined with polarizing microscopy and by conoscopic means. A biaxial nematic phase is observed at a total amphiphile concentration less than 3% (weight) solids. The nematic phase was observed at molar ratios of SLS/HOH near 1/2. At these compositions, the solutions separated into a birefringent top layer, which exhibited optical textures typical of the nematic phase. Conoscopic observation showed that this lyotropic nematic phase was optically positive and biaxial. The biaxial lyotropic nematic phase was stable at room temperature.

引用

页码：630 / 635

页数：6

共 27 条

[1] LIQUID-CRYSTAL PHASE-TRANSITIONS IN MIXTURES OF RODLIKE AND PLATELIKE MOLECULES [J].