Excluded volume effect on the self-assembly of amphiphilic AB diblock copolymer in dilute solution

被引：14
|
作者：
Wang, Rong [1 ]
Jiang, Zhibin [1 ]
Xue, Gi [1 ]
机构：
[1] Nanjing Univ, Dept Polymer Sci & Engn, State Key Lab Coordinat Chem, Nanjing Natl Lab Microstruct,Sch Chem & Chem Engn, Nanjing 210093, Peoples R China
来源：
POLYMER | 2011年 / 52卷 / 10期
关键词：
Diblock copolymer; Solvent size; Excluded volume effect; VESICLE FORMATION; BLOCK-COPOLYMERS; SIZE; SOLVENT; RELAXATION; PHASE;
D O I：
10.1016/j.polymer.2011.03.010
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The self-assembly of amphiphilic AB diblock copolymer in solution with different molecular size was investigated by using the self-consistent field theory (SCFT). By continuously varying the solvent size and the polymer concentration, the phase diagram is constructed. The aggregate concentration of the amphiphilic AB diblock copolymer decreases in solution with larger solvent size. The phase will transit in solution with different solvent size due to the excluded volume interaction effect. This widely existing excluded volume effect is very useful for the separation of polymers and helpful for understanding the crowding effect in bio-molecules. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2361 / 2365
页数：5
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