TfOH-mediated electrophilic aromatic aroylation polycondensation of 2,2′-bis[4-(trifluoromethylated aroyl)phenoxy]biphenyls with arenedicarbonyl dichlorides

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• 作者：Akiko Okamoto ; Megumi Yamazaki ; Katsuya Maeyama ; Hideaki Oike ; Hiromu Saito ; Yoshihiko Murakami ; Noriyuki Yonezawa
• 关键词：CF₃-bearing acyl-acceptant biphenyl ; Wholly aromatic polyketone ; Trifluoromethanesulfonic acid (TfOH) ; Electrophilic aromatic aroylation polycondensation
• 刊名：Reactive and Functional Polymers
• 出版年：2008
• 出版时间：January 2008
• 年：2008
• 卷：68
• 期：1
• 页码：340-350
• 全文大小：322 K

文摘

CF₃-bearing wholly aromatic polyketones were prepared via trifluoromethanesulfonic acid (TfOH)-mediated electrophilic aromatic aroylation polycondensation of CF₃-bearing 2,2′-diaryloxybiphenyls with arenedicarbonyl dichlorides. 2,2′-bis[4-(4-trifluoromethylbenzoyl)phenoxy]biphenyl has good polymerizability and high adaptability against several arenedicarbonyl dichlorides. Against acyl-acceptant monomer having relatively small content of CF₃ group, AlCl₃ is also efficient acidic mediator in the condensation polymerization.

The characteristic dependence of polymerizability and polymer property upon the number and position of CF₃ groups, the length of the side chains, and the kind of the arenedicarbonyl residues are also discussed.