Application of Liquid-Phase Direct Fluorination: Novel Synthetic Methods for a Polyfluorinated Coating Material and a Monomer of a Perfluorinated Polymer Electrolyte Membrane

Applied Sciences

Takashi Okazoe²  Daisuke Shirakawa¹ 

[1] Asahi Glass Co., Ltd., 1-5-1 Marunouchi, Chiyoda-ku, Tokyo 100-8405, Japan;Research Center, Asahi Glass Co., Ltd., 1150 Hazawa-cho, Kanagawa-ku, Yokohama 221-8755, Japan;

关键词: direct fluorination;    anti-staining coating;    surface treating;    polymer electrolyte membrane;    fuel cell;   

DOI  :  10.3390/app2020327

来源: mdpi

【 摘 要 】

A new polyfluorinated anti-staining coating material CF₃O(CF₂CF₂O)_xCF₂--CONHCH₂CH₂CH₂Si(OCH₃)₃ has been developed by utilizing the PERFECT method, which employs a liquid-phase direct fluorination reaction with elemental fluorine as a key step. Direct fluorination of a partially-fluorinated ester, which was prepared from a non-fluorinated poly(ethylene glycol) and a perfluorinated acyl fluoride, followed by methanolysis, gave the perfluorinated corresponding compound, which was led to the coating material for surface treating agents, and the methyl ester of the starting perfluorinated acyl fluoride. Application to the synthesis of a new perfluorinated bifunctional sulfonate monomer CF₂=CFOCF₂CF₂CF₂OCF(CF₂SO₂F)₂ for polymer electrolyte membranes (PEMs) of fuel cells was also developed.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.