한국섬유공학회지 (Textile Science and Engineering)

  • 제34권3호
  • /
  • Pages.148-157
  • /
  • 1997
  • /
  • 1225-1089(pISSN)
  • /
  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
권호 표지

열 및 광가교화에 의한 내열성 향상 폴리우레탄의 합성 및 구조분석 1. 물리적 특성 및 배향거동

Synthesis and Structural Analysis of Thermal and Photo Crosslinkable Polyurethane with high Thermal Stability 1. Mechanical Property and Orientational Behavior

  • 서봉석 (인하대학교 섬유공학과) ;
  • 이한섭 (인하대학교 섬유공학과)
  • Seo, Bong-Seok (Department of Textile Engineering, Inha University) ;
  • Lee, Han-Seop (Department of Textile Engineering, Inha University)
  • 발행 : 1997.03.01

⟨ 이전 논문 다음 논문 ⟩

초록

Polyurethanes were initially synthesized with MDI, polyester type polyol and chain extender containing conjugated diacetylene groups. Interchain cross-linking reaction between diacetylene groups was achieved by UV-irradiation or heat treatment. Interchain cross-linking reaction between diacetylene groups was confirmed with the Raman spectroscopy and the extent of crosslinking reaction was observed by increasing the UV irradiation time or heat treatment time. Cross-linked polyurethanes exhibited higher stress than linear polyurethane at the same strain level. The chemical cross-linkages between diacetylene groups appeared to make more stable hard domain to the external deformation.

키워드

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