Direct fluorination of para-aramid fibers 1: Fluorination reaction process of PPTA fiber
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- 作者：Longbo Luo ; Peng Wu ; Zheng Cheng ; Dawei Hong ; Baoyin Li ; Xu Wang ; Xiangyang Liu ; lxy6912@sina.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Direct fluorination ; PPTA ; Competing reaction ; Reaction process
- 刊名：Journal of Fluorine Chemistry
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：186
- 期：Complete
- 页码：12-18
- 全文大小：1881 K
文摘
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The PPTA fiber was fluorinated with different partial pressure of F2.
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The reaction of F2 with the amide bonds is easier at low Fp (Fp ≤10 kPa) while the reaction of F2 with benzene rings is more favorable at high Fp.
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The results of FTIR prove that the reaction of F2 with benzene rings is mainly an addition reaction, rather than a substitution reaction.