文献类型：期刊文献

中文题名：双组分单分子膜行为特征的研究

英文题名：Study on Charcteristics of Binary Mixture Monolayers

作者：曾作祥[1];聂飞[1];薛为岚[1];黄顺德[1];刘为[1]

机构：[1]华东理工大学化工学院,上海200237

年份：2004

卷号：4

期号：4

起止页码：255

中文期刊名：科学技术与工程

外文期刊名：Science Technology and Engineering

收录：CSTPCD

基金：国家自然科学基金 ( 2 0 0 760 12 )资助

语种：中文

中文关键词：双组分单分子膜;挤出现象;行为特征;过量自由能方程;表面热力学;肺泡

外文关键词：the excess Gibbs' free energy equation binary mixture monolayer squeeze-out phenomenon behavior characteristics

摘要：以DPPC/DPPG、DPPC/DOPG、DPPC/DMPA三组二元混合物为对象 ,制备了相应的单分子膜 ;并测定其表面压—分子平均面积 (π—A)曲线 ,运用表面热力学原理对其进行分析 ,建立了过量自由能与表面压、组成等参数之间的函数关系式。实验数据及计算结果表明 ,该关系式能定量描述双组分单分子膜在舒张 压缩循环过程中的“挤出”
The binary mixture monolayers which were made of DPPC/DPPG, DPPC/DOPG, DPPC/DMPA, were prepared with the 150 mmol Nacl solution as the baseliquid. The surface pressure～area (π—A) isotherms of the monolayers were measured by the membrane balance with high accuracy under different tempreture. An equation was established to describe the relationship between excess Gibbs energy and the surface pressurp, area and molecule constitute. From the experimental data, it was showed that the equation could describe the “squeeze-out” phenomenon on the binary mixture monolayer during the expanded-condensed respiratory circulation.