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Effect of Monomers in Vinyl Urethane Macromonomers on Dispersion Polymerization of Polystyrene

  • Received : 2016.06.03
  • Accepted : 2016.06.08
  • Published : 2016.06.30

Abstract

The four different vinyl monomers in the reaction of isocyanate-terminated polyurethane prepolymer were used for the preparation of macromonomers and successfully employed in the dispersion polymerization of styrene. The chemical structures of vinyl monomer in macromonomers influenced on the polystyrene particle characteristics, such as the conversion, weight average molecular weights ($M_w$), polydispersity index (PDI), weight average diameter ($D_w$), and uniformity. The conversion of polystyrene increased with amounts of methyl group in vinyl monomer. Also the uniformity of polystyrene particles increased with amounts of methyl group in vinyl monomer.

Keywords

vinyl monomer;urethane macromonomer;dispersion polymerization;polystyrene

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Acknowledgement

Grant : BK21플러스

Supported by : 인하대학교