Issue 46, 2015
From the journal:

RSC Advances

Preparation and assembly of concave polymer microparticles†

Yali Wang,a   Chengnian Li,b   Xuehao He*a  and  Jintao Zhu*b  

* Corresponding authors

a Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
E-mail: xhhe@tju.edu.cn

b School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
E-mail: jtzhu@mail.hust.edu.cn

Abstract

This report proposed a promising method that combined microfluidic techniques, phase separation and selective dissolution to prepare uniform concave polystyrene (PS) microparticles. Monodisperse emulsion droplets containing PS and poly(methyl methacrylate) (PMMA) in chloroform were firstly obtained using a microcapillary-based microfluidic device. Uniform PS/PMMA Janus composite particles were then generated through the phase separation between PS and PMMA within the emulsion droplets during organic solvent evaporation. Subsequently, uniform PS concave particles were obtained through selective dissolution of the PMMA domain in the Janus composite particle with acetic acid. Moreover, depletion-mediated directional self-assembly of the prepared concave PS particles was investigated, and polymeric worm-like chains with head-to-tail configuration were observed.

Graphical abstract: Preparation and assembly of concave polymer microparticles

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Article information

DOI
https://doi.org/10.1039/C5RA04110D
Article type
Paper
Submitted
08 Mar 2015
Accepted
17 Apr 2015
First published
17 Apr 2015

RSC Adv., 2015,5, 36680-36686

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Preparation and assembly of concave polymer microparticles

Y. Wang, C. Li, X. He and J. Zhu, RSC Adv., 2015, 5, 36680 DOI: 10.1039/C5RA04110D

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