A Supramolecular Janus Hyperbranched Polymer and Its Photoresponsive Self-Assembly of Vesicles with Narrow Size Distribution

被引：336

作者：

Liu, Yong ^{[1
]}

Yu, Chunyang ^{[1
]}

Jin, Haibao ^{[1
]}

Jiang, Binbin ^{[1
]}

Zhu, Xinyuan ^{[1
]}

Zhou, Yongfeng ^{[1
]}

Lu, Zhongyuan ^{[2
]}

Yan, Deyue ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

[2] Jilin Univ, Inst Theoret Chem, State Key Lab Theoret & Computat Chem, Changchun 130023, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2013年 / 135卷 / 12期

基金：

中国国家自然科学基金;

关键词：

SUPERMOLECULAR LIQUID-CRYSTALS; BLOCK-COPOLYMERS; DENDRIMERS; ARCHITECTURES; FUNCTIONALITY; NANOMEDICINE; STOMATOCYTES; AMPHIPHILES; PARTICLES; MICELLES;

D O I：

10.1021/ja3122608

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Herein, we report a novel Janus particle and supramolecular block copolymer consisting of two chemically distinct hyperbranched polymers, which is coined as Janus hyperbranched polymer. It is constructed by the noncovalent coupling between a hydrophobic hyperbranched poly(3-ethyl-3-oxetanemethanol) with an apex of an azobenzene (AZO) group and a hydrophilic hyperbranched polyglycerol with an apex of a beta-cyclodextrin (CD) group through the specific AZO/CD host-guest interactions. Such an amphiphilic supramolecular polymer resembles a tree together with its root very well in the architecture and can further self-assemble into unilamellar bilayer vesicles with narrow size distribution, which disassembles reversibly under the irradiation of UV light due to the trans-to-cis isomerization of the AZO groups. In addition, the obtained vesicles could further aggregate into colloidal crystal-like close-packed arrays under freeze-drying conditions. The dynamics and mechanism for the self-assembly of vesicles as well as the bilayer structure have been disclosed by a dissipative particle dynamics simulation.

引用

页码：4765 / 4770

页数：6

共 47 条

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