한국섬유공학회지 (Textile Science and Engineering)

  • 제27권2호
  • /
  • Pages.60-69
  • /
  • 1990
  • /
  • 1225-1089(pISSN)
  • /
  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
권호 표지

기상 중합에 의한 에틸렌-프로필렌 공중합체의 구조분석

Structural Analysis of Ethylene-Propylene Copolymers Prepared by Gas-Phase Polymerization Technique

  • 박영환 (서울대학교 농과대학 천연섬유학과)
  • 발행 : 1990.02.01

⟨ 이전 논문 다음 논문 ⟩

초록

Various types of ethylene-propylene copolymers were synthesized with a dry TiCl3 (AA)-Et2AlCl catalyst system by sequential monomer addition using a gas-phase polymerization technique. The polymerization rare curves, observed in this polymerization system, are an acceleration type (gradually increasing rate with time). Monomer sequence distributions were examined by using 13C NMR spectroscopy. 13C NMR spectroscopy demonstrates as the most powerful method for the structural analysis of ethylene-propylene copolymers. The 'blockiness' nature of ethylene-propylene copolymers were observed in this polymerization stytem.

키워드

참고문헌

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