Tacticity control in the radical polymerization of 2,2,2-trifluoroethyl methacrylate with fluoroalcohol

Weihong Liu, Kai Tang, Yinzhong Guo, Yasuhiro Koike, Yoshi Okamoto

研究成果: Article査読

27 被引用数 (Scopus)

抄録

The free-radical polymerization of 2,2,2-trifluoroethyl methacrylate (TEMA) was carried out in fluoroalcohols to achieve stereoregulation. The polymerization reactivity at low temperature and syndiotactic specificity were enhanced by the use of fluoroalcohol as a solvent. The polymer having triad syndiotacticity (rr) of 70% was obtained in perfluoro- t -butyl alcohol. It was noted that the stereochemistry was nearly independent of reaction temperature. The stereoeffect of fluoroalcohols seemed to be due to the hydrogen-bonding interaction between the alcohol and the monomer or growing species. The hydrogen-bonding formation was determined by FTIR. The copolymerization of TEMA with methyl methacrylate (MMA) in hexafluoroisopropanol afforded a copolymer with syndiotactic specificity. By this method, a cladding material for an optical fiber based on poly(methyl methacrylate) (PMMA) with high mechanical strength and low refractive index could be obtained.

本文言語English
ページ(範囲)147-151
ページ数5
ジャーナルJournal of Fluorine Chemistry
123
1
DOI
出版ステータスPublished - 2003 9月 1

ASJC Scopus subject areas

  • 生化学
  • 環境化学
  • 物理化学および理論化学
  • 有機化学
  • 無機化学

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