Preparation and Curing Properties of Low Molecular Weight Polyphenylene Ether with Double Terminal Hydroxyl
Low molecular weight polyphenylene oxide with double terminal hydroxy was synthesized from 2,6-dimethylphenol and 2,2-bis(4-hydroxy-3,5-dimethylphenyl)and confirmed by GPC,FTIR and 1HNMR.The effect of different amounts of polyphenylene ether on the polyphenylene ether/cyanate ester resin composite materials was studied.The results showed that the introduction of polyphenylene ether improved the mechanical properties and low dielectric properties of the material.The curing kinetics of the double terminal hydroxyphenylene ether/cyanate ester resin system was studied by using non isothermal DSC method.The activation energy was calculated by using Kissinger,Starink and other methods,and the kinetic equation of the curing process was obtained.The fitting curve was well matched with the experimental data.Low molecular weight polyphenylene etherwith double terminal hydroxyl is expected to become an ideal thermosetting resin material for high-performance copper-clad laminates.
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