Colloids and Surfaces A 538 (2018) 789–794 Contents lists available at ScienceDirect Colloids and Surfaces A journal homepage: www.elsevier.com/locate/colsurfa Stabilization capacity of PNIPAM microgels as particulate stabilizer in dispersion polymerization Rui Chen, Ning Ren, Xin Jin , Xinyuan Zhu School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: In this work, stabilization capacity of PNIPAM microgels as particulate stabilizer in dispersion polymerization is Stabilization capacity studied. Softness and particle size of PNIPAM microgels as two key parameters are compared. In detail, the Particulate stabilizer recipes for preparation of PNIPAM microgels with controlled softness and particle size are ﬁrstly studied. The Softness softness and particle size of PNIPAM microgels are eﬀectively characterized by DLS, SEM and TEM. After ob- Particle size taining the desired microgels, they are used as particulate stabilizer in dispersion polymerization for preparing PNIPAM microgels polystyrene nanoparticles. The results demonstrate that soft microgels possess better stabilization capacity than hard ones even with smaller particle size. A plausible explanation is proposed in which contact area provided by PNIPAM microgels contributes a lot to the stabilization
Geoderma – Elsevier
Published: Feb 15, 2019
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