Polymeric Janus Particles with Hierarchical Structures

被引：91
作者：
Deng, Renhua [1 ]
Liu, Shanqin [1 ]
Liang, Fuxin [2 ]
Wang, Ke [1 ]
Zhu, Jintao [1 ]
Yang, Zhenzhong [2 ]
机构：
[1] Huazhong Univ Sci & Technol, Key Lab Large Format Battery Mat & Syst, Minist Educ, Sch Chem & Chem Engn, Wuhan 430074, Peoples R China
[2] Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Inst Chem, Beijing 100190, Peoples R China
来源：
MACROMOLECULES | 2014年 / 47卷 / 11期
关键词：
METHACRYLATE) COMPOSITE-PARTICLES; BLOCK-COPOLYMER NANOPARTICLES; PHASE-SEPARATED STRUCTURES; SOLVENT EVAPORATION METHOD; DIBLOCK COPOLYMERS; EMULSION POLYMERIZATION; SPHERICAL NANOPORES; COLLOIDAL PARTICLES; FRUSTRATED PHASES; 3D CONFINEMENT;
D O I：
10.1021/ma500331w
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Janus colloidal particles with hierarchical structures are generated by phase separation of diblock copolymer polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) and homopolymer poly(methyl methacrylate) (PMMA) binary blends in confined geometry. The dependence of their morphology on the copolymer composition, solvent selectivity, particle size, and polymer/aqueous solution interfacial property was investigated. By varying the particle/aqueous solution interfacial property alternately, the Janus particles exhibited a reversible morphological transformation under solvent-adsorption annealing process. In addition, by introducing 3-n-pentadecyphenol (PDP) which can hydrogen bond with P4VP to form supramolecules, the structure of the Janus particles can be well tuned. Furthermore, due to the complexation of pyridine unit with Au precursor, composite Janus particles with Au nanoparticles selectively incorporated in P4VP microdomains can be easily manipulated.
引用
收藏
页码：3701 / 3707
页数：7
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