Effect of Solvent Molecular Size on the Self-Assembly of Amphiphilic Diblock Copolymer in Selective Solvent

被引：12
|
作者：
Li, Wei [1 ,2 ]
Jiang, Wei [1 ,2 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing, Peoples R China
来源：
MACROMOLECULAR THEORY AND SIMULATIONS | 2009年 / 18卷 / 7-8期
基金：
中国国家自然科学基金;
关键词：
amphiphilic diblock copolymer; selectivity; self-assembly; self-consistent field theory; solvent molecular size; CONSISTENT-FIELD THEORY; ACID) BLOCK-COPOLYMERS; DILUTE-SOLUTION; TRIBLOCK COPOLYMERS; AGGREGATE MORPHOLOGIES; PHASE-BEHAVIOR; SIMULATION; POLYMERS; MICROSTRUCTURES; POLYSTYRENE;
D O I：
10.1002/mats.200900033
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Real-space self-consistent field theory (SCFT) is employed to study the effect of solvent molecular size on the self-assembly of amphiphilic diblock copolymer in selective solvent. The phase diagrams in wide ranges of interaction parameters and solvent molecular size were obtained in present study. The results indicate that the solvent molecular size is a key factor that determines the self-assembly of amphiphilic diblock copolymer. The self-assembled morphology changes from circle-like micelle to line-like micelle, then to loop-like micelle by decreasing the solvent molecular size in a wide range of solvent selectivity. We analyze and discuss this change in terms of the solvent solubility and the entropy contribution.
引用
收藏
页码：434 / 440
页数：7
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