昇温溶離分別法 (TREF) を用いたポリプロピレンインパクトコポリマーの熱酸化劣化挙動の解析

DOI Web Site 参考文献8件
  • 真鍋 礼男
    Research and Evaluation Center, Sumitomo Wiring Systems Co., Ltd.
  • 川村 健一
    Research and Evaluation Center, Sumitomo Wiring Systems Co., Ltd.
  • 南 博昭
    Research and Evaluation Center, Sumitomo Wiring Systems Co., Ltd.
  • 鈴木 正太郎
    School of Materials Science Japan Advanced Institute of Science and Technology
  • 山口 史雄
    School of Materials Science Japan Advanced Institute of Science and Technology
  • 田中 貴雅
    School of Materials Science Japan Advanced Institute of Science and Technology
  • 寺野 稔
    School of Materials Science Japan Advanced Institute of Science and Technology
  • 中谷 久之
    Department of Bioengineering and Chemistry, College of Environmental Engineering and Architecture, Kanazawa Institute of Technology Department of Applied and Environmental Chemistry, Kitami Institute of-Technology

書誌事項

タイトル別名
  • Analysis of Thermal Oxidative Degradation Behavior of Polypropylene-Impact Copolymer using Temperature Rising Elution Fractionation
  • ショウオン ヨウリ ブンベツホウ TREF オ モチイタ ポリプロピレンインパクトコ ポリマー ノ ネツ サンカ レッカ キョドウ ノ カイセキ

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抄録

The thermal oxidative degradation of polypropylene-impact copolymers (ImPP), which was separated into three fractions, I (105°C-110°C), II (110°C-115°C) and III (115°C-145°C), using temperature rising elution fractionation (TREF) was investigated. The primary structure of each fraction, e.g. copolymer compositions and microtacticities of PP sequences, was determined by FT-1R and 13C-NMR. It was found that the fraction of higher temperature range (115°C-145°C) was mainly composed of homopolypropylene, containing much meso pentad (mmmm) sequence, and was the matrix of ImPP. The fraction showed less stability for thermal oxidative degradation, suggesting that the degradation behavior of ImPP was determined principally by the content of this high mmmm fraction.

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