Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Esterification of Fluoroethanol with Methacrylic Acid through Acid-resistant Poly(vinyl alcohol) Pervaporation Membranes

산저항성을 가진 PVA 투과증발막을 이용한 불화에탄올과 메타크릴산의 에스테르화 반응

  • Kim Jeong-Hoon (Interface Materials & Eng. Lab. Division of Advanced Chemical Technology, Korea Research Institute of Chemical Technology) ;
  • Chang Bong-Jun (Interface Materials & Eng. Lab. Division of Advanced Chemical Technology, Korea Research Institute of Chemical Technology) ;
  • Lee Yong-Taek (Department of Chemical Engineering, Chung-Nam National University) ;
  • Lee Soo-Bok (Interface Materials & Eng. Lab. Division of Advanced Chemical Technology, Korea Research Institute of Chemical Technology)
  • 김정훈 (한국화학연구원 계면재료공정연구실) ;
  • 장봉준 (한국화학연구원 계면재료공정연구실) ;
  • 이용택 (충남대학교 화학공학과) ;
  • 이수복 (한국화학연구원 계면재료공정연구실)
  • Published : 2006.09.01
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Abstract

This study discusses an esterification of trifluoroethanol (TFEA) with methacrylic acid (MA) using acid-resistant PVA pervaporation membrane. The acid-resistant PVA membranes, which were prepared via a thermal cross-linking reaction of PVA and EGDE were adopted in the esterification reaction. The effect of reaction conditions such as temperature, acid catalyst content, and initial molar ratio of TFEA/MA was investigated on the conversion of trifluoroethyl-methacrylate (TFEMA). It was found that TFEMA conversion increased with increasing the reaction temperature, the catalyst content, and the initial molar ratio. The economical conversion of TFEMA more than about 90% was obtained at the following reaction conditions: reaction temperature of $90^{\circ}C$, 2.5 wt% of catalyst and initial molar ratio of 1.7.

본 연구는 산저항성을 가진 새로운 폴리비닐알콜계 투과증발막을 이용한 불화에탄올(TFEA)과 메타크릴산(MA)의 에스테르화 반응에 관한 연구이다. TFEA와 MA의 에스테르화 에스텔화반응에 사용된 폴리비닐알콜계 막은 PVA와 EGDE의 열 가교반응을 통하여 제조되었다. 에스텔화 반응의 반응조건 - 반응온도, 산 촉매의 양, 초기 몰비(불화에탄올/메탄크릴산)- 등을 달리하여 에스텔화 반응에 미치는 영향을 조사하였다. 실험 결과, TFEMA 전환율은 반응온도 촉매의 양, 초기몰비가 증가함에 따라 향상되었다. TFEMA 전환율이 90% 이상을 위한 경제적인 반응조건은 $90^{\circ}C$의 반응온도, 2.5 wt%의 촉매 양, 그리고 1.7의 초기 반응 몰비였다.

Keywords

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