Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Graft Copolymerization of Acrylonitrile and 4-Chlorostyrene onto EPDM Rubber.

EPDM 고무에 Acrylonitrile과 4-Chlorostyrene의 그라프트 공중합

  • Park, Duck-Jei (Department of Polymer Science and Engineering, Pusan National University) ;
  • Ha, Chang-Sik (Department of Polymer Science and Engineering, Pusan National University) ;
  • Lee, Jin-Kook (Department of Polymer Science and Engineering, Pusan National University) ;
  • Cho, Won-Jei (Department of Polymer Science and Engineering, Pusan National University)
  • 박덕제 (부산대학교 공과대학 고분자공학과) ;
  • 하창식 (부산대학교 공과대학 고분자공학과) ;
  • 이진국 (부산대학교 공과대학 고분자공학과) ;
  • 조원제 (부산대학교 공과대학 고분자공학과)
  • Published : 1989.06.30
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Abstract

The radical initiated graft copolymerization of acrylonitrile(AN) and 4-chlorostyrene(4-Clst) onto ethylene-propylene-diene terpolymer(EPDM) rubber was investigated under various conditions. Graft copolymer(AU-EPDM-4-Clst) was isolated b: selective solvent extraction and identified by using IR spectroscopy. The percent grafting is determined as a function of solvent, reaction time, and monomer mole ratio. Percent grafting decreased in the order of tetrahydrofuran(THF)>THF/ethyl acetate(EA)(1 : 1)>cyclohexane/EA(1 : 1)>n-hexane/EA(1 : 1). Grafting increased continuously with increasing the reaction time up to 40 hr, beyond which the grafting levelled off. It was observed that percent grafting increased as increasing [4-Clst]/[AN] mole ratio, but decreased when [4-Clst]/[AN] mole ratio was higher than 1.60. The light resistance of graft copolymer(AN-EPDM-4-Clst) was better than that of ABS.

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