Self-Assembly and pH-Responsiveness of ABC Miktoarm, Star Terpolymers

被引：34
作者：
Van Butsele, K. [1 ]
Fustin, C. A. [2 ]
Gohy, J. F. [2 ]
Jerome, R. [1 ]
Jerome, C. [1 ]
机构：
[1] Univ Liege, Ctr Educ & Res Macromol, B-4000 Liege, Belgium
[2] Univ Catholique Louvain, Unite CMAT, B-1348 Louvain, Belgium
来源：
LANGMUIR | 2009年 / 25卷 / 01期
关键词：
AMPHIPHILIC BLOCK-COPOLYMERS; MULTICOMPARTMENT MICELLES; DIBLOCK COPOLYMERS; JANUS MICELLES; AQUEOUS-MEDIA; DEPENDENT MICELLIZATION; TRIBLOCK COPOLYMERS; POLYMERIC MICELLES; WATER; OXIDE);
D O I：
10.1021/la802469c
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This work deals with the self-assembly in water of ABC miktoarm star terpolymers consisting of hydrophobic poly(E-caprolactone), hydrophilic poly(ethylene oxide) (PEO), and pH-sensitive poly(2-vinylpyridine) (P2VP). A variety of experimental techniques were used, including dynamic light scattering, transmission electron microscopy, and zeta potential. Special attention was paid to the pH dependency of the supramolecular self-assemblies. A key observation is the capability of the miktoarm terpolymers to form micelles stable over the whole range of pH, although a transition was observed from neutral to highly positively charged nanoobjects upon decreasing pH.
引用
收藏
页码：107 / 111
页数：5
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