The synthesis and characterization of a new cross-linkable copolymerization poly(arylene ether sulfone) End-Capped with Phthalonitrile

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Li, Kui^1 ; Xu, Mingzhen^1 ; Tang, Xianzong^1 ; Liu, Xiaobo^1

Research Branch of Advanced Functional Materials, School of Materials Science and Engineering, University of Electronic Science and Technology of China, Chengdu

611731, China^1

关键词: 1H NMR spectroscopy;    After high temperature;    Cross-link reactions;    Fracture morphology;    Phthalonitrile groups;    Poly (Arlene ether sulfonic);    Poly(arylene ether sulfone);    Synthesis and characterizations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/5/052009/pdf
DOI  :  10.1088/1755-1315/170/5/052009

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A novel of cross-linkable copolymerization poly (Arlene ether sulfonic) end-capped with phthalonitrile had been firstly synthesized by nucleophile substitution reaction. The effects of crosslink reaction on thermal property of PES films were studied. The 1H NMR spectroscopy spectra have confirmed that the phthalonitrile group was connected to PES chain terminal. The fracture morphology was observed by SEM, the results suggested that the crosslink reaction of the films occurred during the heat treatment. DSC, TGA and gel content testing indicated the thermal stability getting better after high temperature treatment. The Tag and T5% reach 221.7 co. and 546.6 co. after the PES films treatment at 340 co. for 6 h.