Effect of dopant structure on refractive index and glass transition temperature of polymeric fiber-optic materials

Kotaro Koike, Hongxiang Teng, Yasuhiro Koike, Yoshiyuki Okamoto

研究成果: Article査読

20 被引用数 (Scopus)

抄録

Graded-index plastic optical fibers, composed of doped polymers, have advantages over conventional glass optical fibers, but need to be developed further for practical application. Here, a variety of aromatic sulfide dopants were synthesized, and their effects on the refractive indexes and glass transition temperatures (Tg) of poly(methyl methacrylate) and methyl 2-chloroacrylate/2,2,2-trichloroethyl methacrylate copolymers were studied. While polymers containing large dopants exhibited relatively high refractive indices, their Tg values were low, making these materials unsuitable for graded-index plastic optical fiber applications. Six dopants yielded polymers that exhibited higher Tg values than the conventionally used (diphenyl sulfide)-doped polymer. The dopant dibenzothiophene, in particular, yielded polymers with the highest refractive indexes and Tg values, and polymers containing (phenylthio)benzene dopants also performed well.

本文言語English
ページ(範囲)204-210
ページ数7
ジャーナルPolymers for Advanced Technologies
25
2
DOI
出版ステータスPublished - 2014 2 1

ASJC Scopus subject areas

  • Polymers and Plastics

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