期刊
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
卷 49, 期 15, 页码 3272-3279出版社
WILEY-BLACKWELL
DOI: 10.1002/pola.24762
关键词
anisotropic colloid particles; colloids; emulsion polymerization; nanocomposites; organic-inorganic; Pickering emulsion; self-assembly
资金
- National Natural Science Foundation of China [21074023]
- National 863'' Foundation, Science & Technology Foundation of Shanghai [0952nm01000, 10JC1401900]
- innovative team of Ministry of Education of China [IRT0911]
This study presents a very simple method to fabricate organic-inorganic asymmetric colloid spheres. In this approach, when silica particles are used as the Pickering emulsifier to stabilize the monomer droplets (styrene) in water via acid-base interaction between silica particles and auxiliary monomer (1-vinylimidazole), the exposed surfaces of silica particles are very easy to be locally modified with 3-(trimethoxysilyl)propyl methacrylate. When water-based initiator is added, polystyrene-silica asymmetric colloid spheres are highly yielded. The sizes of silica and polymer particles can be tunable. These organic-inorganic anisotropic colloid spheres can self-assemble into an interesting thickness-dependent film. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 3272-3279, 2011
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