Clean Technology (청정기술)

The Korean Society of Clean Technology (한국청정기술학회)
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Synthesis of Polyols Based on Castor Oil with Maleic Anhydride and Aminoalcohol Derivatives for Polyurethanes

폴리우레탄 제조를 위한 무수말레산과 아미노알콜을 이용한 피마자유 기반의 폴리올 합성

  • Jung, Sung-Gil (Department of Molecular Science and Technology, Ajou University) ;
  • Jeong, Jae-Hyeok (Department of Molecular Science and Technology, Ajou University) ;
  • Kim, Sang-Wook (Department of Molecular Science and Technology, Ajou University) ;
  • Kwon, O-Pil (Department of Molecular Science and Technology, Ajou University)
  • 정성길 (아주대학교 분자과학기술학과) ;
  • 정재혁 (아주대학교 분자과학기술학과) ;
  • 김상욱 (아주대학교 분자과학기술학과) ;
  • 권오필 (아주대학교 분자과학기술학과)
  • Received : 2011.07.14
  • Accepted : 2011.09.16
  • Published : 2011.09.30
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Abstract

We investigate new polyols based on castor oil for polyurethane. In order to introduce primary alcohol groups, which exhibit higher reactivity with isocyanate than secondary alcohol groups, the secondary alcohol groups on castor oil were modified with maleic anhydride and aminoalcohol derivatives ($H_2N$-R-OH). The reactions with various molar ratio of castor oil and maleic anhydride were done at relatively low reaction temperature in the absence of catalyst. The polyols based on castor oil with flexible side-chains exhibit better miscibility with conventional synthetic polyols.

본 연구에서는 폴리우레탄을 위한 친환경 폴리올 합성을 위하여 피마자유 기반의 폴리올을 합성하였다. 피마자유의 2차 알콜에 다른 촉매 없이 무수말레산을 이용하여 카르복실기를 도입하고, 이를 1차 알콜로 전환하기 위하여 아미노알콜($H_2N$-R-OH) 유도체를 반응시켜 친환경 폴리올을 제조하였다. 다양한 비율의 피마자유와 무수말레산의 반응이 시험 되었으며, 전체 반응은 상대적으로 낮은 공정온도와 무촉매 반응을 기반으로 수행되었다. 긴 곁가지가 도입되어 유동성을 가지고 있는 피마자유 기반의 천연폴리올이 기존의 합성폴리올과 가장 우수한 상용성을 나타내었다.

Keywords

References

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