Chemical Research in Chinese Universities ›› 2016, Vol. 32 ›› Issue (1): 134-139.doi: 10.1007/s40242-016-5291-7

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Synthesis and Characterization of Monodisperse Emulsion Copolymer

JIANG Yan1,2,3, SUN Xu1, LI Bin1, REN Xiaojun2, ZHANG Hongwen1, ZHANG Rong1   

  1. 1. School of Material Science and Engineering, Changzhou University, Changzhou 213164, P. R. China;
    2. Department of Chemistry, College of Liberal Arts and Sciences, University of Colorado, Denver 80217-3364, USA;
    3. Jiangsu Chenguang Paint Co., Ltd., Changzhou 213154, P. R. China
  • Received:2015-07-30 Revised:2015-09-14 Online:2016-02-01 Published:2015-12-20
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.51203105), the China Postdoctoral Science Foundation (No.2014M551602), the Jiangsu Provincial Industrial Support Program, China(No.BE2014821), the Jiangsu Postdoctoral Science Foundation, China(No.1401083B) and the Research Prospective Study of Jiangsu Province, China(Nos.BY2014037-05, BY2015027-10, BY2015027-22).

Abstract:

Monodisperse emulsion copolymer was synthesized by semi-continuous core-shell emulsion polymerization of styrene, butyl acrylate and γ-methacryloxypropyl trimethoxy silane(KH570). The emulsion particles size and its polydispersion were measured by dynamic light scattering(DLS). The properties of emulsion copolymer were characterized by differential scanning calorimetry(DSC), thermogravimetric analysis(TGA) and measurement of contact angle. The particle morphology was observed under a transmission electron microscope(TEM) and atomic force microscopy(AFM). The results indicate that emulsion nanoparticles containing silicon possess core-shell structures and narrow polydispersity(PDI≤0.08). The thermal stability and hydrophobicity of emulsion copolymer were improved with KH570 introduced into the system.

Key words: γ-Methacryloxypropyl trimethoxy silane(KH570), Emulsion polymerization, Monodisperse nanoparticle