Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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A Study on the Bio-Based Polyurethane

바이오 폴리우레탄에 관한 연구

  • Ko, Jong-Sung (Korea Institute of Science and Technology Information) ;
  • Lee, Jin-Hui (Department of Chemical and Biomolecular Engineering of Seoul National University of Science and Technology) ;
  • Sung, Ki-Chun (Department of Chemical Engineering, Daejin University)
  • 고종성 (한국과학기술정보연구원) ;
  • 이진휘 (서울과학기술대학교 화공생명공학과) ;
  • 성기천 (대진대학교 화학공학과)
  • Received : 2012.09.14
  • Accepted : 2012.09.25
  • Published : 2012.09.30
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Abstract

The thesis covers the trend of research on bio-based polyurethane which is made from polyols derived mainly from plant oils and isocyanates. Castor oil is a triglyceride of ricinoleic acid containing hydroxyl group. Hydroxylation is done on the unsaturated bonds of the oils by the reactions of epoxidation/ring opening, hydroformylation/hydrogenation, ozonolysis/hydrogenation, and thiol-ene reaction. Polyols from hyperbranch, primary alcohol, polysaccharide have been studied to control the reactivity of the polyol and morphology of the microdomains. Besides, researches cover biodegradable polylactic acid polyol for medical use, fatty acid dimer polyol for the prevention of hydrolysis, and polyol with ionic group for water-borne polyurethane. Bio-based polyurethanes are being used in flexible and rigid foams, coatings, sealants, and elastomers.

본 논문은 바이오폴리우레탄의 연구동향에 관한 것이다. 바이오폴리우레탄은 원료 중의 식물유 폴리올과 이소시아네이트의 중부가 고분자이다. 피마자유의 주성분은 히드록시기를 갖는 리시놀산의 트리글리세라이드이다. 이외의 히드록시기가 없는 식물유는 이중결합 위치에서 에폭시화 후 고리열림, 히드로포르밀화 후 수소첨가, 가오존분해 후 수소첨가, 티올-엔 반응으로 히드록시기를 부여한다. 폴리올의 반응성 및 마이크로도메인의 모폴로지 조절을 위한 하이퍼브랜치 폴리올, 일차 알코올 폴리올, 다당류 폴리올이 있다. 의료용의 생분해성 폴리락트산 폴리올, 가수분해 방지용 지방산 다이머 폴리올, 이온성 기를 함유한 수 분산 폴리우레탄용 폴리올이 있다. 바이오폴리올을 이용한 바이오폴리우레탄은 경질 및 연질 폼, 코팅제, 접착제, 실런트, 엘라스토머에 쓰인다.

Keywords

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