Kinetics of Anhydride Curing of Epoxy : Effect of Chain Length of Anhydride

에폭시 무수화물 경화의 동력학적 연구: 무수화물의 사슬 길이 효과

  • Chung, I. (Department of Applied Chemical Engineering) ;
  • Lee, J. (Advance Materials Division, Korea Research Institute of Chemical Technology)
  • 정익수 (목원대학교 응용화학공학과) ;
  • 이재락 (한국화학연구소 화학소재연구부)
  • Published : 2005.03.31

Abstract

The ruling kinetics of epoxy resins with 3 different kinds or alkenylsuccinic anhydride (ASA) having C-8, C-12, and C-16 pendant side chain length with two different catalysts was studied by using differential scanning calorimetry (DSC). Nonisothermal and isoconversional method has been used for characterizing the effect of the pendant side chain length in the curing process. Results or nonisothermal method showed that there was no significant difference in the effect of the pendant side chain length of ASA. But isoconversional analysis showed that the value of the activation energy for the initiation reaction or C-8, C-12, and C-16 were $61.7{\sim}57.7kJ/mol$, $63.0{\sim}57.3 kJ/mol$, and $130.4{\sim}94.2 kJ/mol$, respectively, depending on the catalyst used. The values of activation energy for the initiation is different as reported value of 20 kJ/mol which indicating the difference in the effect of the pendant side chain length of ASA in the initial stage of the reaction.

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