Autocatalytic Cure Kinetics of DGEBA/MDA/PGE-AcAm System

DGEBA/MDA/PGE-AcAm계의 자촉매 반응 속도론

  • Lee, Jae-Yeong (Dept. of Chemical Engineering, University of Seoul) ;
  • Sim, Mi-Ja (Dept. of Life Sci. The Univ. of Seoul) ;
  • Kim, Sang-Uk (Dept. of Chemical Engineering, University of Seoul)
  • 이재영 (서울시립대학교 화학공학과) ;
  • 심미자 (서울시립대학교 생명과학과) ;
  • 김상욱 (서울시립대학교 화학공학과)
  • Published : 1998.09.01


The cure kinetics for diglycidyl ether of bisphenol A(DGEBA)/4, 4'-methylene dianiline(MDA) system with or without lOphr of phenyl glycidyl ether(PGE)-acetamide(AcAm) was studied by autocatalytic cure expression. On the dynamic DSC curves, the exothermic peak temperature and the onset temperature of reaction decreased with the addition of PGE-AcAm. Regardless of the addition of PGE-AcAm, the shape of the conversion curve showed sigmoid, and this meant that DGEBA/MDA and DGEBA/MDA/PGE-AcAm systems followed autocatalytic cure reaction. When PGE-AcAm was added to DGEBA/MDA system, the cure rate increased about 1.2~1.4 times due to the catalytic role of hydroxyl groups in PGE-AcAm.



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