Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Synthesis of Impact-Modified Nylon 6-PPG Block Copolymers Having Various Morphologies via RIM Process and Their Physical Properties(I) -Kinetics of Polymerization-

다양한 모폴로지를 갖는 내충격성 개질 나일론 6-PPG 블록공중합체의 RIM 공정을 통한 합성과 물성에 관한 연구(I) -중합속도-

  • 김갑진 (경희대학교 공과대학 섬유공학과) ;
  • 조홍준 (경희대학교 공과대학 섬유공학과) ;
  • 김영호 (숭실대학교 공과대학 섬유공학과)
  • Published : 1999.01.01

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Abstract

The copolymerization of $\varepsilon$-caprolactam(CL) and PPG-diamine has been performed using various activators such as tolylene dicarbamoyl dicaprolactam(TDC), hexamethylene dicarbamoyl dicaprolactam(HDC), and 1,3-bis(2-isocyanato-2-propyl) benzene/CL adduct(IDC) and sodium caprolactamate as a catalyst. The overall rate of polymerization of CL has been studied by fitting the experimental temperature rise with a polymerization kinetic equation involving the polymerization exotherm, polymerization-induced crystallization exotherm, and the heat loss due to nonideal adiabatic condition in the experimental situation. It was observed that for identical concentration of activator used in the presence of the impact modifier(PPG-diamine), HDC showed the fastest rate of polymerization and TDC showed the slowest one. The slowest activator TDC showed the highest yield of copolymerization, whereas IDC showed the lowest yield of copolymerization.

Keywords

References

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