物理化学学报 >> 1991, Vol. 7 >> Issue (01): 117-120.doi: 10.3866/PKU.WHXB19910121

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NaCl、KCl、Na2CO3、K2CO3等电解质溶液对含水卵磷脂液晶结构影响的SAXS研究

姚松年; 曹连欣   

  1. 武汉大学分析测试中心
  • 收稿日期:1989-08-16 修回日期:1990-06-11 发布日期:1991-02-15
  • 通讯作者: 姚松年

SAXS Studies of the Structure of Liquid Crystal 5%H2O-PC in Solutions of NaCl、KCl、Na2CO3、K2CO3

Yao Song-Nian; Cao Lian-Xin   

  1. The Center of Analysis and Test, Wuhan University
  • Received:1989-08-16 Revised:1990-06-11 Published:1991-02-15
  • Contact: Yao Song-Nian

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关键词: 卵磷脂, 液晶结构, 小角X射线散射

Abstract: This paper describs the structural character of liquid-crystal of 5%H_2O-egg yolk phospholipid (PC) containing in avarious salt's solution, the layer distance was determined by means of SAXS method. Experimental results show that the layer distance of liquid crystal phase is increased in the 5%H_2O-PC system as the amount of solution of NaCl or KCl is increased. But on the addition of Na_2CO_3 or K_2CO_3 solution into the 5%H_2O-PC system the layer distance of liquid-crystal phase is held constant. It is considered that Na_2CO_3 or K_2CO_3, might be hydrolyzed producing OH~- ions, so that the latter could stablize the interfacial potential between water and egg yolk phospholipid. Absence of this behavior for solution of NaCl or KCl might be due to NaCl and KCl are salts which formed by strong acids and strong bases.

Key words: Egg yolk phospholipid, Structure of liquid-crystal, Small angle X-ray scattering