Copolymers of methyl methacrylate with N-trifluorophenyl maleimides: High glass transition temperature and low birefringence polymers

Liping Lou, Akihiro Tagaya, Yoko Ide, Yasuhiro Koike, Yoshiyuki Okamoto

研究成果: Article査読

12 被引用数 (Scopus)

抄録

Copolymers of methyl methacrylate (MMA) with 2,3,4- and 2,4,6-trifluorophenyl maleimides (TFPMIs) were synthesized by a free radical initiator, azobisisobutyronitrile, in 1,4-dioxane and also in bulk. The refractive indexes of the copolymers were in the range of 1.49-1.52 at 532 nm. The T gs were 133-195 °C depending on copolymer compositions. In addition, the copolymers were thermally stable, T d > 350 °C. The orientational and photoelastic birefringence of the copolymers were also investigated. As both of the orientational and photoelastic birefringences of PMMA are negative, whereas those of poly(TFPMI)s are positive, we could obtain nearly zero orientational and photoelastic birefringence polymers when the ratios of 2,3,4-TFPMI/MMA were 15/85 and 5/95 mol %, respectively. For 2,4,6-TFPMI, zero orientational and photoelastic birefringences could be obtained when the ratios of 2,4,6-TFPMI/MMA were 12/88 and 3/97 mol %, respectively. The T gs of those copolymers with zero birefringences were in the range of 135-140 °C.

本文言語English
ページ(範囲)3530-3536
ページ数7
ジャーナルJournal of Polymer Science, Part A: Polymer Chemistry
50
17
DOI
出版ステータスPublished - 2012 9月 1

ASJC Scopus subject areas

  • ポリマーおよびプラスチック
  • 有機化学
  • 材料化学

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