DYNAMICS OF SURFACE-DIFFERENTIATED ALKYLAMMONIUM ION VESICLES

被引:19
作者
MOSS, RA
FUJITA, T
GANGULI, S
机构
[1] Department of Chemistry, Rutgers State University of New Jersey, New Brunswick
关键词
D O I
10.1021/la00096a028
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Covesicles of 10 mol % Ci6 (la), Cig (lb), or C2o (lc) p-nitrophenyl benzoate functional surfactants with 90 mol % Ci6, Ci8, or C20 nonfunctional surfactants (2a-c), prepared at pH 3.8, could be surface differentiated by esterolytic cleavage of the exovesicular benzoate head groups with glutathione in pH 8 Tris buffer. Flip-flop equilibration of intact endovesicular p-nitrophenyl benzoate surfactant molecules between exo- and endovesicular loci could then be followed. The kinetics of the exovesicular and endovesicular benzoate esterolyses and the dynamics of the flip-flop equilibrations are examined as functions of surfactant chain length and covesicle composition. © 1990, American Chemical Society. All rights reserved.
引用
收藏
页码:1197 / 1199
页数:3
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