Acta Phys. -Chim. Sin. ›› 2005, Vol. 21 ›› Issue (09): 1055-1058.doi: 10.3866/PKU.WHXB20050922

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Study of Ordering for AOT/Water Lamellar Lyotropic Liquid Crystal: Small-angle X-ray Scattering Experiments

ZHUANG Wen-chang; CHEN Xiao; YANG Chun-jie; WANG Lu-yan; CHAI Yong-cun   

  1. Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100
  • Received:2005-01-11 Revised:2005-03-28 Published:2005-09-15
  • Contact: CHEN Xiao

Abstract: Small-angle X-ray scattering (SAXS) is utilized to study the ordering of AOT/water lamellar phase. As increasing surfactant concentration, temperature or adding cosurfactant in certain range, the arrangement of hydrocarbon chains will change from sparse to dense which results in the structural transformation of lamellar phase from “flexible” to “planar” bilayers. The possible mechanism is proposed based on shape factor and molecular interactions. Molecular simulations are also carried out to testify the obtained results.

Key words: SAXS, Molecular simulation, Lamellar phase