Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Studies on the Preparation of Anion Exchange Membrane through Blending of the Poly(ethylenimine) and the Poly(vinyl alcohol)

폴리비닐알코올과 폴리에틸렌이민과의 혼합을 통한 음이온교환막의 제조 연구

  • Kim, Sung-Pyo (College of Life Science & Nano Technology, Department of Chemical Engineering & Nano-Bio Technology, Hannam University) ;
  • Kim, Baek-Kyun (College of Life Science & Nano Technology, Department of Chemical Engineering & Nano-Bio Technology, Hannam University) ;
  • Lee, Hak-Min (College of Life Science & Nano Technology, Department of Chemical Engineering & Nano-Bio Technology, Hannam University) ;
  • Rhim, Ji-Won (College of Life Science & Nano Technology, Department of Chemical Engineering & Nano-Bio Technology, Hannam University) ;
  • Jeong, Sung-Il (College of Life Science & Nano Technology, Department of Chemical Engineering & Nano-Bio Technology, Hannam University)
  • 김성표 (한남대학교 대덕밸리캠퍼스 생명.나노과학대학 나노생명화학공학과) ;
  • 김백균 (한남대학교 대덕밸리캠퍼스 생명.나노과학대학 나노생명화학공학과) ;
  • 이학민 (한남대학교 대덕밸리캠퍼스 생명.나노과학대학 나노생명화학공학과) ;
  • 임지원 (한남대학교 대덕밸리캠퍼스 생명.나노과학대학 나노생명화학공학과) ;
  • 정성일 (한남대학교 대덕밸리캠퍼스 생명.나노과학대학 나노생명화학공학과)
  • Received : 2010.12.03
  • Accepted : 2010.12.22
  • Published : 2010.12.30
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Abstract

This study focuses on the investigation of the anion exchange membrane through blending poly(ethylenimine) (PEI) and poly(vinyl alcohol) (PVA) varying the mixing ratio. To characterize the resulting membranes, the water content, contact angle, FT-IR, thermal gravimetric analysis, ion exchange capacity, ion conductivity and elastic modulus were measured. The PVA / PEI = 90 / 10 membrane showed the ion conductivity, $5.16{\times}10^{-2}S/cm$ and simultaneously the contact angle, $78.3^{\circ}$. According to TGA measurement, the resulting membranes seemed durable at room temperature. Through the modulus test, the mechanical properties increased with increasing PVA content and apparently the membranes looked very robust.

본 연구에서는 음이온교환막 개발에 관한 것으로 poly(ethylenimine) (PEI) / poly(vinyl alcohol) (PVA)의 혼합비율에 따라 막을 제조하였다. 제조된 막의 특성화를 평가하기 위하여 함수율, 접촉각, FT-IR, 이온교환용량, 이온전도도, 열 중량분석, 탄성계수 측정을 실시하였다. 이온전도도 측정 결과 PVA/PEI의 함량이 90 : 10으로 제조된 막의 경우 $5.16{\times}10^{-2}S/cm$의 값을 나타내어 우수한 음이온전도도를 나타내었으며 접촉각 측정 결과 PEI의 함량이 증가함에 따라 막표면의 소수성이 $78.3^{\circ}$까지 함께 증가하는 결과를 나타내었다. 또한 열에 대한 안정성은 PVA의 우수한 성질을 변화시키지 않았으며 탄성계수 측정을 통해 고강도 기계적 물성을 확인할 수 있었다.

Keywords

References

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