Surface nucleation-induced fluoropolymer Janus nanoparticles via emulsifier-free batch-seeded emulsion polymerization

被引：41

作者：

Pan, Mingwang ^{[1
]}

Yang, Lianyun ^{[2
]}

Guan, Bing ^{[2
]}

Lu, Maosheng ^{[2
]}

Zhong, Ganji ^{[3
]}

Zhu, Lei ^{[2
]}

机构：

[1] Hebei Univ Technol, Inst Polymer Sci & Engn, Tianjin 300130, Peoples R China

[2] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA

[3] Sichuan Univ, Coll Polymer Sci & Engn, Chengdu 610065, Peoples R China

来源：

SOFT MATTER | 2011年 / 7卷 / 23期

关键词：

NONSPHERICAL COLLOIDAL PARTICLES; ANISOTROPIC PARTICLES; INTERFACIAL PHENOMENA; LATEX-PARTICLES; MORPHOLOGY; MICROPARTICLES; NETWORKS;

D O I：

10.1039/c1sm06498c

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：

Nonspherical poly(vinylidene fluoride)/polystyrene (PVDF/PS) composite latex particles were prepared via a facile emulsifier-free batch-seeded emulsion polymerization. It was found that the styrene (St)/PVDF feed ratio was a determining factor for the formation of well-defined Janus particles. Transmission electron microscopy study revealed that the immiscibility between PVDF and St-swollen PS (PS/St) was the driving force for the dewetting and nucleation of PS/St bulges on the PVDF particle surface. When the St/PVDF feed ratio was high, easy fusion of multiple PS/St bulges into one single bulge on the PVDF particle resulted in well-defined PVDF/PS Janus particles. When the St/PVDF feed ratio was low, it was difficult for multiple bulges to fuse together to form PVDF/PS Janus particles.

引用

页码：11187 / 11193

页数：7

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