標題: Curing behaviour of compatible interpenetrating polymer networks based on epoxy and methacrylated epoxy
作者: Wang, MW
Lee, CT
Lin, MS
應用化學系
Department of Applied Chemistry
關鍵字: IPN;compatibility;network interlock;cure;viscosity increase
公開日期: 1-十二月-1997
摘要: Compatible interpenetrating polymer networks (IPNs) based on diglycidyl ether of bisphenol A (DGEBA) and methacrylated diglycidyl ether of bisphenol A (MADGEBA) in weight ratios of 100/0, 75/25, 50/50, 25/75 and 0/100 were blended and cured simultaneously by using dicumyl peroxide (DICUP) and hexahydrophthalic anhydride (HHPA) as curing agents. Fourier transform infrared spectroscopy (FTIR) was employed to investigate the intermolecular interactions and functional group changes. Viscosity increases during crosslinking were examined with a Brookfield viscometer. Curing exothermic peaks were studied with differential scanning calorimetry (DSC). The gel fractions of various IPN compositions were measured with a Soxhlet extractor. Samples thus prepared were checked for their compatibility by measuring glass transitions with DSC and damping peaks with rheometric dynamic spectroscopy (RDS). Experimental results revealed that good compatibility between components induced a network interlock, which subsequently resulted in incomplete cure of the IPN materials.
URI: http://hdl.handle.net/11536/158
ISSN: 0959-8103
期刊: POLYMER INTERNATIONAL
Volume: 44
Issue: 4
起始頁: 503
結束頁: 509
顯示於類別:期刊論文


文件中的檔案:

  1. 000071299900014.pdf