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 [in Japanese] STUDIES ON ELASTIC POLYURETHANE YARNS, PART 1 MOLECULAR STRUCTURE OF SOFT-SEGMENT AND ELASTIC PROPERTIES OF POLYURETHANE YARNS [in Japanese]
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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.
GOMU 72(3), 150-159, 1999-03-15
THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN