Macromolecular Research

The Polymer Society of Korea (한국고분자학회)
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Effect of Poly(butyl acrylate)-Poly(methyl methacrylate) Rubber Particle Texture on the Toughening Behavior of Poly(methyl methacrylate)

  • Chung, Jae-Sik (Division of Ceramic & Chemical Engineering, Myongji University) ;
  • Park, Kyung-Ran (Division of Ceramic & Chemical Engineering, Myongji University) ;
  • Wu, Jong-Pyo (Division of Ceramic & Chemical Engineering, Myongji University) ;
  • Han, Chang-Sun (Styrenic Resin R&D Center, LG Chemical Ltd.) ;
  • Lee, Chan-Hong (Styrenic Resin R&D Center, LG Chemical Ltd.)
  • Published : 2001.04.01
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Abstract

Monodisperse composite latex particles with size of ca. 300 nm, which consist ofn-butyl acrylate as a soft phase and methyl methacrylate as a hard phase with different morphology, were synthesized by seeded multi-stage emulsion polymerization. Three types of composite latex particles including random-, core/shell-, and gradient-type particles were obtained by using different monomer feeding methods during semi-batch emulsion polymerization. Effect of poly(butyl acrylate)-poly(methyl methacrylate) rubber particle morphology on the mechanical and rheological properties of rubber toughened poly(methyl methacrylate) was investigated. Among three different rubber particles, the gradient-type rubber particle showed better toughening effect than others. No significant variation of rheological property of poly(methyl methacrylate)/rubber blends was observed for the different rubber particle morphology.

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