Photo-responsive supramolecular self-assembly and disassembly of an azobenzene-containing block copolymer

被引：71
作者：
Jin, Qiao [1 ]
Liu, Gongyan [1 ]
Liu, Xiangsheng [1 ]
Ji, Jian [1 ]
机构：
[1] Zhejiang Univ, Dept Polymer Sci & Engn, MOE Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China
来源：
SOFT MATTER | 2010年 / 6卷 / 21期
关键词：
AMPHIPHILIC DIBLOCK COPOLYMERS; HOLLOW-SPHERE TRANSITION; POLYMER VESICLES; PHOTORESPONSIVE PROPERTIES; PHOTOINDUCED FUSION; ALPHA-CYCLODEXTRIN; COMPLEX VESICLES; GENE DELIVERY; LIGHT; MICELLIZATION;
D O I：
10.1039/c0sm00428f
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
An azobenzene-containing block copolymer poly(ethylene oxide)-b-poly(6-[4-phenylazo phenoxy] hexyl methacrylate-co-2-(dimethylamino) ethyl methacrylate) (PEO-b-P(AzoMA-co-DMAEMA)) was successfully designed to explore self-assembly behavior in an aqueous solution. PEO-b-P(AzoMA-co-DMAEMA) can self-assemble into vesicles in water. The morphologies and sizes of the vesicles can be controlled by copolymerization of hydrophobic AzoMA with different amounts of DMAEMA. Spherical vesicle-to-compound vesicle-to-irregular vesicle transitions were observed by facilely adjusting the content of DMAEMA and AzoMA. After the addition of different amounts of beta-CD, vesicles were transformed into micelles and at last dissociated. Alternating irradiation of the solution with UV and visible light induced the reversible supramolecular self-assembly and disassembly of vesicles because of the photo-induced trans-to-cis isomerization of azobenzene units. The supramolecular self-assembly and disassembly procedure was studied by dynamic light scattering (DLS), transmission electron microscopy (TEM) and UV-vis spectra.
引用
收藏
页码：5589 / 5595
页数：7
相关论文
共 61 条
[41]   Photoinduced fusion of micro-vesicles self-assembled from azobenzene-containing amphiphilic diblock copolymers [J].
Su, Wei ;
Luo, Yanhua ;
Yan, Qing ;
Wu, Si ;
Han, Kuo ;
Zhang, Qijin ;
Gu, Yongqiang ;
Li, Yinmei .
MACROMOLECULAR RAPID COMMUNICATIONS, 2007, 28 (11) :1251-1256
[42]   Formation and photoresponsive properties of giant microvesicles assembled from azobenzene-containing amphiphilic diblock copolymers [J].
Su, Wei ;
Han, Kuo ;
Luo, Yanhua ;
Wang, Zhong ;
Li, Yinmei ;
Zhang, Qijin .
MACROMOLECULAR CHEMISTRY AND PHYSICS, 2007, 208 (09) :955-963
[43]   Sphere to disk transformation of micro-particle composed of azobenzene-containing amphiphilic diblock copolymers under irradiation at 436 nm [J].
Su, Wei ;
Zhao, Hui ;
Wang, Zhong ;
Li, Yinmei ;
Zhang, Qijin .
EUROPEAN POLYMER JOURNAL, 2007, 43 (02) :657-662
[44]   Ultrafast dynamics of photochromic systems [J].
Tamai, N ;
Miyasaka, H .
CHEMICAL REVIEWS, 2000, 100 (05) :1875-1890
[45]   Effect of poly(acrylic acid) block length distribution on polystyrene-b-poly(acrylic acid) block copolymer aggregates in solution.: 2.: A partial phase diagram [J].
Terreau, O ;
Bartels, C ;
Eisenberg, A .
LANGMUIR, 2004, 20 (03) :637-645
[46]   Synthesis, nanostructures, and functionality of amphiphilic liquid crystalline block copolymers with azobenzene moieties [J].
Tian, YQ ;
Watanabe, K ;
Kong, XX ;
Abe, J ;
Iyoda, T .
MACROMOLECULES, 2002, 35 (09) :3739-3747
[47]   How can azobenzene block copolymer vesicles be dissociated and reformed by light? [J].
Tong, X ;
Wang, G ;
Soldera, A ;
Zhao, Y .
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (43) :20281-20287
[48]   Positional assembly of enzymes in polymersome nanoreactors for cascade reactions [J].
Vriezema, Dennis M. ;
Garcia, Paula M. L. ;
Oltra, Nuria Sancho ;
Hatzakis, Nikos S. ;
Kuiper, Suzanne M. ;
Nolte, Roeland J. M. ;
Rowan, Alan E. ;
van Hest, Jan C. M. .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (39) :7378-7382
[49]   Redox responsive supramolecular amphiphiles based on reversible charge transfer interactions [J].
Wang, Chao ;
Guo, Yinsheng ;
Wang, Yapei ;
Xu, Huaping ;
Zhang, Xi .
CHEMICAL COMMUNICATIONS, 2009, (36) :5380-5382
[50]   Preparation of azobenzene-containing amphiphilic diblock copolymers for light-responsive micellar aggregates [J].
Wang, G ;
Tong, X ;
Zhao, Y .
MACROMOLECULES, 2004, 37 (24) :8911-8917
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