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Oxidative Polymerization of 2,6-Difluorophenol to Crystalline Poly(2,6-difluoro-1,4-phenylene oxide)

Oxidative polymerization of 2,6-difluorophenol was performed using the Fe−salen complex and hydrogen peroxide as catalyst and oxidizing agent, respectively. The resulting polymer obtained at 60 °C in 1,4-dioxane was partly soluble in tetrahydrofuran and insoluble in chloroform, benzene, and hexafluo...

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Bibliographic Details
Published in:Macromolecules 2000-09, Vol.33 (18), p.6648-6652
Main Authors: Ikeda, Ryohei, Tanaka, Hozumi, Uyama, Hiroshi, Kobayashi, Shiro
Format: Article
Language:English
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Summary:Oxidative polymerization of 2,6-difluorophenol was performed using the Fe−salen complex and hydrogen peroxide as catalyst and oxidizing agent, respectively. The resulting polymer obtained at 60 °C in 1,4-dioxane was partly soluble in tetrahydrofuran and insoluble in chloroform, benzene, and hexafluorobenzene. The molecular weight of the THF-soluble part was in the range of several thousands. NMR and IR analysis showed the formation of poly(2,6-difluoro-1,4-phenylene oxide). In the DSC trace of second scan, the crystallization temperature and melting point were observed, indicating that the Fe−salen complex enabled the synthesis of crystalline poly(phenylene oxide) from 2,6-difluorophenol for the first time.
ISSN:0024-9297
1520-5835
DOI:10.1021/ma000805r