Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Preparation of Ag Nanoparticles by Templating Poly(vinyl chloride)-g-poly(styrene sulfonic acid) Graft Copolymer Membrane

Poly(vinyl chloride)-g-poly(styrene sulfonic acid) 가지형 공중합체막을 이용한 은 나노입자 제조

  • Byun, Su-Jin (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • Seo, Jin-Ah (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • Chi, Won-Seok (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • Shul, Yong-Gun (Department of Chemical and Biomolecular Engineering, Yonsei University) ;
  • Kim, Jong-Hak (Department of Chemical and Biomolecular Engineering, Yonsei University)
  • 변수진 (연세대학교 화공생명공학과) ;
  • 서진아 (연세대학교 화공생명공학과) ;
  • 지원석 (연세대학교 화공생명공학과) ;
  • 설용건 (연세대학교 화공생명공학과) ;
  • 김종학 (연세대학교 화공생명공학과)
  • Received : 2010.12.14
  • Accepted : 2011.03.07
  • Published : 2011.03.30
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Abstract

An amphiphilic graft copolymer consisting of a poly(vinyl chloride) (PVC) backbone and poly(styrene sulfonic acid) (PSSA) side chains (PVC-g-PSSA) was synthesized via atom transfer radical polymerization (ATRP). This polymer electrolyte membrane was ion-exchanged to Ag ions by immersing in 10 wt% $AgNO_3$ aqueous solution and templated the growth of Ag nanoparticles by a reducing agent. The formation of Ag nanoparticles was confirmed using UV-visible spectroscopy and X-ray diffraction (XRD). Transmission electron microscopy (TEM) revealed that utilization of $NaBH_4$ was the most effective in the formation of Ag nanoparticles with 10~15 nm in size. The formation of Ag nanoparticles was also strongly affected by the concentration of reducing agent and reduction time.

원자전달 라디칼 중합(ATRP)에 의해 poly(vinyl chloride) (PVC) 주사슬과 poly(styrene sulfonic acid) (PSSA) 곁사슬로 되어있는 양쪽성 PVC-g-PSSA 가지형 공중합체를 합성하였다. 합성된 고분자 전해질막을 10 wt% $AgNO_3$ 수용액에 담가 은이온으로 이온교환을 하였으며, 환원제를 통하여 은 나노입자를 성장시켰다. UV분광학과 XRD 분석을 통해 은 나노입자 성장을 확인하였다. 투과전자현미경(TEM) 분석결과 $NaBH_4$를 사용하였을 때 10~20 nm 크기의 은 나노입자를 얻는데 가장 효과적임을 알 수 있었다. 또한 은 나노입자의 성장은 환원제의 농도와 환원 시간에 크게 영향을 받았다.

Keywords

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