Studies on elastic polyurethane yarns. Part 1. Molecular structure of soft-segment and elastic properties of polyurethane yarns.

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  • ポリウレタン　ＩＩ　　ポリウレタン弾性糸に関する研究　（第１報）　　ソフトセグメントの一次構造とポリウレタン弾性糸の弾性機能
  • ソフトセグメント ノ 1ジ コウゾウ ト ポリウレタン ダンセイシ ノ ダンセイ キノウ
  • MOLECULAR STRUCTURE OF SOFT-SEGMENT AND ELASTIC PROPERTIES OF POLYURETHANE YARNS

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Abstract

The relationships between soft-segments and the elastic properties of polyurethane yarns were studied. Poly ε-caprolactone diol(PCL), ε-caprolactone(CL)-ethyleneoxide(EO) copolymer diol, PCL-polypropylene glycol (PPG) block copolymer diol, PCL/PPG blend and polytetramethylene glycol (PTG) were used as soft-segments. The effects of molecular weight and molecular weight distribution of diols, and also the effects of chain length of soft-segments on the elastic properties of polyurethane yarns were examined. It was found that the permanent set of polyurethane yarn was related to the chain length of soft-segment and the melting point of diol.

Journal

  • NIPPON GOMU KYOKAISHI

    NIPPON GOMU KYOKAISHI 72 (3), 150-159, 1999

    THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN

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