ABC Triblock Copolymer Vesicles with Mesh-Like Morphology

被引：63
|
作者：
Zhao, Wei [1 ]
Chen, Dian [1 ]
Hu, Yunxia [1 ]
Grason, Gregory M. [1 ]
Russell, Thomas P. [1 ]
机构：
[1] Univ Massachusetts, Dept Polymer Sci & Engn, Amherst, MA 01003 USA
来源：
ACS NANO | 2011年 / 5卷 / 01期
基金：
美国国家科学基金会;
关键词：
block copolymer; vesicle; anodic aluminum oxide; ethylene glycol; morphologies; CYLINDRICAL CONFINEMENT; DIBLOCK COPOLYMERS; CARBON NANOTUBES; BLOCK-COPOLYMERS; ANODIC ALUMINA; POLYMERSOMES; MEMBRANES; INSTABILITIES; DEPENDENCE; NANORODS;
D O I：
10.1021/nn1028289
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Polymer vesicles made from poly(isoprene-b-styrene-b-2-vinyl pyridine) (Pl-b-PS-b-P2VP) triblock copolymer confined within the nanopores of an anodic aluminum oxide (AAO) membrane are studied It was found that these vesicles have well-defined, nanoscopic size, and complex microphase-separated hydrophobic membranes, comprised of the PS and PI blocks, while the coronas are formed by the P2VP block.,Vesicle formation was tracked using both transmission and scanning electron microscopy. A mesh like morphology formed in the membrane at a well-defined composition of the three blocks that can be tuned by Changing the copolymer composition. The nanoscale confinement copolymer composition, and subtle molecular interactions contribute, to the generation of these vesicles with such unusual morphologies.
引用
收藏
页码：486 / 492
页数：7
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