Article
  • Properties of Polyurethane Elastomer. 2. The Effect of Hard Segment Structure
  • Ahn TO, Hong IP, Kim JH, Jeong HM
  • 폴리우레탄 탄성체의 구조와 물성. 2. Hard Segment 구조의 영향
  • 안태완, 홍익표, 김정호, 정한모
Abstract
Polyurethane elastomers were synthesized from poly(tetramethylene glycol) (PTMG), hexamethylene diisocyanate(HDI)/dicyclohexylmethane-4,4''-diisocyanate(H12MDI) mixture, and 1,4-butane diol by solution polymerization. The physical properties of polyurethane elastomers at various feed ratios of HDI/H12MDI and from PTMG''s of various molecular weights were studied. As the HDI/H12MDI feed ratio and molecular weight of PTMG were increased, phase segregation into two domains of hard segment and soft segment was more evidently shown from thermal properties, infra-red spectroscopy, and tensile properties.

Poly(tetramethylene glycol) (PTMG). hexamethylene diisocyanate (HDI)/dicyclohexylmethane-4,4''-diisocyanate(H12MDI) 혼합물, 그리고 1,4-butane diol을 사용하여 폴리우레탄 탄성체를 용액 중합하여, 탄성체 내의 hard segment 성분인 HDI/H12MDI feed비와 soft segment인 PTMG의 분자량의 변화에 따른 물성의 변화를 조사하였다. HDI/H12MDI feed 비 값이 클수록, PTMG의 분자량이 클수록 hard segmend와 soft segment의 상분리 정도가 큼을 열적성질, 적외선 분광분석, 강신도 거동에서 관찰할 수 있었다.

Keywords:

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1990; 14(6): 608-614

    Published online Dec 25, 1990

  • 10.7317/pk.
  • Received on Nov 30, -0001
  • Revised on Nov 30, -0001
  • Accepted on Nov 30, -0001

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