Issue 19, 2016

Pickering polymerization of styrene stabilized by starch-based nanospheres

Abstract

Here, we present a novel nanoparticle derivate from natural polysaccharide as a stabilizer for the Pickering polymerization of styrene. In this process, amphiphilic starch-based nanospheres (SNPs) were fabricated from starch octenyl succinic ester through a nanocoprecipitation process as a Pickering stabilizer. The effects of the SNP concentration, size and pH value on the Pickering polymerization are investigated in detail. The polystyrene (PS) particle morphology transforms from bare PS particles to raspberry-like structures with an increase in the SNP content. The linear relationship between the inverse diameter of the PS particles and the SNP content allows for an estimation of the coverage of SNPs on the PS particle surface. Moreover, the size of the PS particles can be regulated by the SNP size. The microstructure of the PS particles can also be regulated by the pH value of the reaction medium. Finally, a possible mechanism for the formation of the PS particles with different morphologies is proposed.

Graphical abstract: Pickering polymerization of styrene stabilized by starch-based nanospheres

Supplementary files

Article information

Article type
Paper
Submitted
24 Feb 2016
Accepted
12 Apr 2016
First published
13 Apr 2016

Polym. Chem., 2016,7, 3325-3333

Pickering polymerization of styrene stabilized by starch-based nanospheres

X. Pei, Y. Tan, K. Xu, C. Liu, C. Lu and P. Wang, Polym. Chem., 2016, 7, 3325 DOI: 10.1039/C6PY00341A

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