Crystalline structures and thermal properties of poly(ethylene-co-α ,ω-nonconjugated diene)s prepared by zirconocene catalysts

Naofumi Naga, Shinji Okada, Yukio Imanishi

研究成果: Article査読

11 被引用数 (Scopus)

抄録

Crystalline structures and thermal properties of poly(ethylene-co-α ,ω-nonconjugated diene)s, [diene = 1,5-hexadiene (HD), 1,7-octadiene (OD), and 1,9-decadiene (DD)] have been investigated in relation to insertion mode of the dienes. In the case of poly(ethylene-co-HD), the copolymer containing high cis-1,3-cyclopentane units shows lower melting point depression with increasing the comonomer content than the copolymers containing high trans-1,3-cyclopentane units. In the case of poly(ethylene-co-OD) and poly(ethylene-co-DD), the copolymers containing pendant vinyl groups show higher ΔHm than that of the copolymers with cyclic units or branching structures. Thermal degradation of the copolymers has been investigated under nitrogen atmosphere and the degradation of the copolymers containing the cyclic structures begins at lower temperature than the copolymers containing pendant vinyl groups.

本文言語English
ページ(範囲)117-124
ページ数8
ジャーナルPolymer
45
1
DOI
出版ステータスPublished - 2004 1 1
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ASJC Scopus subject areas

  • 有機化学
  • ポリマーおよびプラスチック
  • 材料化学

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