Hierarchical Self-Assembly of Polyhedral Oligomeric Silsesquioxane End-Capped Stimuli-Responsive Polymer: From Single Micelle to Complex Micelle

被引：72

作者：

Ma, Li ^{[1
,3
]}

Geng, Haiping ^{[3
]}

Song, Jiangxuan ^{[3
]}

Li, Jinze ^{[2
,3
]}

Chen, Guangxin ^{[1
,3
]}

Li, Qifang ^{[1
,3
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

[2] Key Lab Preparat & Proc Novel Polymer Mat Beijing, Beijing 100029, Peoples R China

[3] Beijing Univ Chem Technol, Coll Mat Sci & Engn, Beijing 100029, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2011年 / 115卷 / 36期

基金：

中国国家自然科学基金;

关键词：

AMPHIPHILIC DIBLOCK COPOLYMERS; RAFT POLYMERIZATION; AQUEOUS-SOLUTION; BLOCK-COPOLYMER; ATRP; TEMPERATURE; BEHAVIOR; CORE; POLY(N-ISOPROPYLACRYLAMIDE); METHACRYLATE);

D O I：

10.1021/jp203782g

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：

Responsive polymeric micelles have been widely studied because of their potential use in nanocontainers and nanocarriers. In this study, polyhedral oligomeric silsesquioxane (POSS) end-capped poly[2-(dimethylamino)ethyl methacrylate] (POSS-PDMAEMA), a stimuli-responsive organic-inorganic hybrid polymer, was synthesized via atom transfer radical polymerization (ATRP) using POSS-Br as a macroinitiator. The self-assembly behaviors of POSS-PDMAEMA in aqueous solution were studied by fluorescence probe, transmission electron microscopy (TEM), dynamic light scattering (DLS), high-resolution transmission electron microscopy (HRTEM), and X-ray diffraction (XRD). The results revealed two self-assembly processes of POSS-PDMAEMA. First they self-assembled into a single micelle with the POSS molecules forming a crystal core and the PDMAEMA chains stretching as a corona. Then the single micelles, as building blocks, were able to reversibly form a hierarchical micelle-on-micelle structure (complex micelle) under external stimuli.

引用

页码：10586 / 10591

页数：6

共 43 条

[31] Synthesis and Self-Assembly of pH-Responsive Amphiphilic Poly(dimethylaminoethyl methacrylate)-block-Poly(pentafluorostyrene) Block Copolymer in Aqueous Solution [J].

Tan, Beng H. ;

Gudipati, Chakravarthy S. ;

Hussain, Hazrat ;

He, Chaobin ;

Liu, Ye ;

Davis, Thomas P. .

MACROMOLECULAR RAPID COMMUNICATIONS, 2009, 30 (12) :1002-1008

[32] Synthesis of Amphiphilic Tadpole-Shaped Linear-Cyclic Diblock Copolymers via Ring-Opening Polymerization Directly Initiating from Cyclic Precursors and Their Application as Drug Nanocarriers [J].

Wan, Xuejuan ;

Liu, Tao ;

Liu, Shiyong .

BIOMACROMOLECULES, 2011, 12 (04) :1146-1154

[33] Self-Assembly Behaviors of Telechelic Poly(styrene-ran-sodium styrenesulfonate) with Polyhedral Oligomeric Silsesquioxane as End Groups [J].

Wei, Jia ;

Tan, Beng H. ;

Bai, Yu ;

Ma, Jan ;

Lu, Xuehong .

JOURNAL OF PHYSICAL CHEMISTRY B, 2011, 115 (09) :1929-1935

[34] Polymeric nanocarriers possessing thermoresponsive coronas [J].

Xu, Jian ;

Liu, Shiyong .

SOFT MATTER, 2008, 4 (09) :1745-1749

[35] Temperature- and pH-responsive dense copolymer brushes prepared by ATRP [J].

Yamamoto, Shin-ichi ;

Pietrasik, Joanna ;

Matyjaszewski, Krzysztof .

MACROMOLECULES, 2008, 41 (19) :7013-7020

[36] Synthesis and Self-Assembly of Stimuli-Responsive Poly(2-(dimethylamino) ethyl methacrylate)-block-fullerene (PDMAEMA-b-C60) and the Demicellization Induced by Free PDMAEMA Chains [J].

Yao, Z. L. ;

Tam, K. C. .

LANGMUIR, 2011, 27 (11) :6668-6673

[37] A pH-sensitive double [60]fullerene-end-capped polymers via ATRP: Synthesis and aggregation behavior [J].

Yu, H. ;

Gan, L. H. ;

Hu, X. ;

Gan, Y. Y. .

POLYMER, 2007, 48 (08) :2312-2321

[38] A Giant Surfactant of Polystyrene-(Carboxylic Acid-Functionalized Polyhedral Oligomeric Silsesquioxane) Amphiphile with Highly Stretched Polystyrene Tails in Micellar Assemblies [J].

Yu, Xinfei ;

Zhong, Sheng ;

Li, Xiaopeng ;

Tu, Yingfeng ;

Yang, Shuguang ;

Van Horn, Ryan M. ;

Ni, Chaoying ;

Pochan, Darrin J. ;

Quirk, Roderic P. ;

Wesdemiotis, Chrys ;

Zhang, Wen-Bin ;

Cheng, Stephen Z. D. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (47) :16741-16744

[39] Organic-Inorganic Hybrid Hydrogels Involving Poly(N-isopropylacrylamide) and Polyhedral Oligomeric Silsesquioxane: Preparation and Rapid Thermoresponsive Properties [J].

Zeng, Ke ;

Fang, Yuan ;

Zheng, Sixun .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 2009, 47 (05) :504-516

[40] Novel fluoroalkyl end-capped amphiphilic diblock copolymers with pH/temperature response and self-assembly behavior [J].

Zhang, Hu ;

Ni, Peihong ;

He, Jinlin ;

Liu, Cuicui .

LANGMUIR, 2008, 24 (09) :4647-4654

← 1 2 3 4 5 →