Morphology and mechanical properties of poly (ether-imide)-modified polycyanurates.
writer：Wang, M. H.; Yu, Y. F.; Zhan, G. Z.; Tang, X. L.; Li, S. J.
keywords：Morphology, mechanical properties, poly (ether-imide), polycyanurates.
source：期刊
specific source：Colloid and Polymer Science 2006, 284, (11), 1379-1385.
Issue time：2006年
A high temperature thermosetting bisphenol A dicyanate (BADCy) was modified with a novel thermoplastic poly(ether-imide) (PEI) at various compositions. Fourier transform infrared spectroscopy was used to measure the conversion of BADCy. Curing kinetics of the BADCy/PEI blend were studied by the dynamic differential scanning calorimeter method. Morphologies of PEI-modified polycyanurates were investigated by scanning electron microscopy (SEM). It was found that the phase structures of the blends changed dramatically with the PEI content and molecular weight. The tensile results showed that the mechanical properties could be correlated with the morphologies. The blend with cocontinuous morphology had the highest tensile strength and elongation at break while the blend with ribbon-like morphology had the lowest one despite PEI molecular weight.