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Synthesis, Cure Behavior, and Rheological Properties of Fluorine-Containing Epoxy Resins  

박수진 (한국화학연구원 화학소재연구부)
김범용 (한국화학연구원 화학소재연구부)
이재락 (한국화학연구원 화학소재연구부)
신재섭 (충북대학교 화학과)
Publication Information
Polymer(Korea) / v.27, no.3, 2003 , pp. 176-182 More about this Journal
Abstract
The fluorine-containing epoxy resin, 2-trifluorotoluene diglycidylether (FER) was prepared by reaction of 2-chloro-${\alpha}$,${\alpha}$,${\alpha}$-trifluorotoluene with glycerol diglycidylether in the presence of pyridine catalyst. Curing behavior of FER/DDM system was investigated using dynamic and isothermal DSC. Cure activation energy (Ea) was determined by Flynn-Wall-Ozawa's equation. The rheological properties of FER/DDM system were studied under isothermal condition using a rheometer. Cross-linking activation energy (Ec) was determined from the Arrhenius equation based on gel time and curing temperature. As a result, the chemical structure of FER was confirmed by FT-IR, $\^$13/C NMR, and $\^$19/F NMR spectroscopy. The cure activation energy of FER/DDM system was 55.4 kJ/mol and conversion and conversion rate were increased with the curing temperature. The cross-linking activation energy of FER/DDM system was 41.6 kJ/mol and gel time was decreased with the curing temperature.
Keywords
fluorine; epoxy resins; cure behavior; activation energy; rheological properties;
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