作者: Haitong Sheng , Xuegang Peng , Hui Guo , Xiaoyan Yu , Chengchun Tang
DOI: 10.1016/J.MATCHEMPHYS.2013.08.033
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摘要: Abstract A novel alkyl-center-trisphenolic-based high-temperature phthalonitrile monomer, namely, 1,1,1-tris-[4-(3,4-dicyanophenoxy)phenyl]ethane (TDPE), was synthesized from 1,1,1-tris-(4-hydroxyphenyl)ethane (THPE) via a facile nucleophilic displacement of nitro-substituent 4-nitrophthalonitrile (NPN). The structure TDPE monomer characterized by Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (1H and 13C NMR), elemental analysis (EA). Curing behaviors with 4-(aminophenoxy)phthalonitrile (APPH) were recorded differential scanning calorimetric (DSC) it showed large processing window (122 °C) which is favorable to polymers. polymer discussed the thermal stabilities evaluated thermogravimetric (TGA). exhibits excellent stability, mechanism decompositions explored. Dynamic mechanical (DMA) revealed that has high storage modulus glass transition temperature (Tg > 380 °C).