期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 24, 期 18, 页码 1060-1065出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200300023
关键词
activation energy; differential scanning calorimetry (DSC); isoconversional kinetic analysis; kinetics (polym.); liquid crystalline epoxy thermoset
The curing of a mesomorphic epoxy has been studied by polarized light microscopy (PLM) and differential scanning calorimetry. PLM in combination with wide-angle X-ray diffraction proves the formation of a liquid crystalline (LC) structure. An advanced isoconversional method reveals that the formation of the LC structure is accompanied by a dramatic decrease in the effective activation from similar to60 to similar to10 kJ . mol(-1). A kinetic model of the phenomenon has been discussed.
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