Issue 23, 2011
From the journal:

Soft Matter

Surface nucleation-induced fluoropolymer Janus nanoparticlesviaemulsifier-free batch-seeded emulsion polymerization

Mingwang Pan,*a   Lianyun Yang,b   Bing Guan,*b   Maosheng Lu,b   Ganji Zhongc  and  Lei Zhu*b  

* Corresponding authors

a Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin, P. R. China
E-mail: mwpan@126.com
Fax: +86-22-60202421
Tel: +86-22-60202054

b Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio, USA
E-mail: bing.guan@case.edu, lxz121@case.edu
Fax: +1-216-368-4202
Tel: +1-216-368-5861

c College of Polymer Science and Engineering, Sichuan University, Chengdu, P. R. China

Abstract

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.

Graphical abstract: Surface nucleation-induced fluoropolymer Janus nanoparticlesvia emulsifier-free batch-seeded emulsion polymerization

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Article information

DOI
https://doi.org/10.1039/C1SM06498C
Article type
Paper
Submitted
04 Aug 2011
Accepted
12 Sep 2011
First published
14 Oct 2011

Soft Matter, 2011,7, 11187-11193

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

M. Pan, L. Yang, B. Guan, M. Lu, G. Zhong and L. Zhu, Soft Matter, 2011, 7, 11187 DOI: 10.1039/C1SM06498C

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