Structural Evolution of Multicompartment Micelles Self-Assembled from Linear ABC Triblock Copolymer in Selective Solvents

被引：77

作者：

Jiang, Tao ^{[1
]}

Wang, Liquan ^{[1
]}

Lin, Shaoliang ^{[1
]}

Lin, Jiaping ^{[1
]}

Li, Yongliang ^{[1
]}

机构：

[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Bioreactor Engn,Minist Educ, Shanghai Key Lab Adv Polymer Mat,Key Lab Ultrafin, Shanghai 200237, Peoples R China

来源：

LANGMUIR | 2011年 / 27卷 / 10期

基金：

中国国家自然科学基金;

关键词：

DISSIPATIVE PARTICLE DYNAMICS; MIKTOARM STAR TERPOLYMERS; CONSISTENT-FIELD THEORY; BLOCK-COPOLYMERS; AGGREGATE MORPHOLOGIES; AQUEOUS-SOLUTIONS; DIAMINE BLENDS; SIMULATION; VESICLES; BEHAVIOR;

D O I：

10.1021/la201080z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Using dissipative particle dynamics simulation, structural evolution from concentric multicompartment micelles to raspberry-like multicompartment micelles self-assembled from linear ABC triblock copolymers in selective solvents was investigated. The structural transformation from concentric micelles to raspberry-like micelles can be controlled by changing either the length of B blocks or the solubility of B block. It was found that the structures with B bumps on C surface (B-bump-C) are formed at shorter B block length and the structures with C bumps on B surface (C-bump-B) are formed at relative lower solubility of B blocks. The formation of B-bump-C is entropy-driven, while the formation of C-bump-B is enthalpy-dominated. Furthermore, when the length of C blocks is much lower than that of B blocks, an inner-penetrating vesicle was discovered. The results gained through the simulations provide an insight into the mechanism behind the formation of raspberry-like micelles.

引用

页码：6440 / 6448

页数：9

共 59 条

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