POLYMORPHISM OF (QUASI) 2-DIMENSIONAL MICELLES

被引：117
|
作者：
ZHU, JY [1 ]
LENNOX, RB [1 ]
EISENBERG, A [1 ]
机构：
[1] MCGILL UNIV,DEPT CHEM,801 SHERBROOKE ST W,MONTREAL H3A 2K6,QUEBEC,CANADA
来源：
JOURNAL OF PHYSICAL CHEMISTRY | 1992年 / 96卷 / 12期
关键词：
D O I：
10.1021/j100191a002
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Langmuir films of block polyelectrolyte surface aggregates formed at the air-water interface have been visualized as Langmuir-Blodgett films using transmission electron microscopy. The morphologies adopted by these (quasi) 2-D aggregates are critically dependent upon the ratio of the hydrophobic and hydrophilic block sizes. Three morphologies are observable (starfish, rod, and planar) in polystyrene/decylated poly(vinylpyridinium) block polyelectrolytes. Each particular morphology is observed within a well-defined composition range. Parallel polymorphism in 3D aggregates of block copolymers and small molecular weight amphiphiles suggest that the rules governing self-assembly in 2D and 3D and both small and large molecular weight molecules are qualitatively quite similar.
引用
收藏
页码：4727 / 4730
页数：4
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