Crystallization behavior of hard segment in polyurethane elastomers

Ken Kojio, Shun Matsumura, Shuhei Nozaki, Suguru Motokucho, Mutsuhisa Furukawa, Kohji Yoshinaga, Atsushi Takahara

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)

抄録

The crystalline hard segment models of segmented polyurethane elastomers are made of 4,4'-diphenylmethane diisocyanate (MDI) and 1,4-butanediol (BD). Here we investigate the crystalline behavior of polyurethane that in addition contain 1,1,1-trimethylol propane (TMP), poly(oxytetramethylene) glycol (PTMG), and polyethylene glycol (PEG). The melting points (Tm) of crystallized MDI-BD units decreased with increasing TMP contents and increased with increasing PTMG contents, respectively. A decrease in molecular weight of PTMG and incorporation of PEG decreased Tm. These results indicate that incorporation of a third component would cause to form the well-ordered crystal being closed to equilibrium state.

本文言語英語
ページ(範囲)608-614
ページ数7
ジャーナルKOBUNSHI RONBUNSHU
71
11
DOI
出版ステータス出版済み - 2014

!!!All Science Journal Classification (ASJC) codes

  • 化学工学(その他)
  • 材料科学(その他)
  • 環境科学(全般)
  • ポリマーおよびプラスチック

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