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Synthesis and characterization of poly(arylene ether ketone)s with 3,6-diphenyl-9H-carbazole pendants using C-N coupling reaction

2019/11/28 浏览数:

刊物名称:High Performance Polymers

出处:High Performance Polymers 2017 Vol.29No.5 P575-584 0954-0083

作者:Liu, B(Liu, Bei)[1];Chen, Z(Chen, Zheng)[1];Lin, LM(Lin, Liming)[1];Han, YT(Han, Yuntao)[1];Pang, JH(Pang, Jinhui)[1];Jiang, ZH(Jiang, Zhenhua)[1]

摘要:3,6-Diphenyl-9H-carbazole pendants are grafted herein to poly(arylene ether ketone)s (PAEKs) via the Ullmann C-N coupling reaction. To the best of our knowledge, this is the first time that PAEKs containing a carbazole pendant (Cz) have been synthesized through the Ullmann C-N coupling reaction. The high molecular weights of PAEK-Cz (PAEKs with 3,6-diphenyl-9H-carbazole pendants) are inherited from their precursors, owing to the high reactivity of their monomers. The obtained PAEK-Cz-x polymers exhibit good solubility in most common organic solvents and excellent thermal stabilities, with the 5% weight loss temperatures for all products being above 598 degrees C under a nitrogen atmosphere. The glass transition temperatures are all above 199 degrees C and can be controlled by adjusting the feed ratio of monomers. The polymer membranes obtained by the casting method are tough and thus have strong potential for practical applications.

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