Polymer(Korea) (폴리머)

The Polymer Society of Korea (한국고분자학회)
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Plasma-Induced Grafting of Poly(N-vinyl-2-pyrrolidone) onto Polypropylene Surface

폴리프로필렌 표면 위에 폴리비닐피롤리돈의 플라즈마 유도 그래프트 공중합

  • Ji, Han-Sol (Department of Chemical Engineering, Chungnam National University) ;
  • Jung, Si-In (Department of Chemical Engineering, Chungnam National University) ;
  • Hur, Ho (Department of Chemical Engineering, Chungnam National University) ;
  • Choi, Ho-Suk (Department of Chemical Engineering, Chungnam National University) ;
  • Kim, Jae-Ha (Bioneer Co.) ;
  • Park, Han-Oh (Bioneer Co.)
  • 지한솔 (충남대학교 공과대학 화학공학과) ;
  • 정시인 (충남대학교 공과대학 화학공학과) ;
  • 허호 (충남대학교 공과대학 화학공학과) ;
  • 최호석 (충남대학교 공과대학 화학공학과) ;
  • 김재하 ((주)바이오니아) ;
  • 박한오 ((주)바이오니아)
  • Received : 2011.09.02
  • Accepted : 2011.12.11
  • Published : 2012.05.25
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Abstract

The objective of this study is to investigate optimum reaction conditions for the grafting of poly($N$-vinyl- 2-pyrrolidone) (PVP) onto the surface of plasma-treated polypropylene film. The plasma treatment conditions were fixed as 200 W rf power, 6 LPM Ar flow rate, 30 sec treatment time, and 5 min exposure time after treatment. For graft copolymerization, we investigated the change of grafting degree with respect to reaction time, reaction temperature and $N$-vinyl-2-pyrrolidone concentration. Maximum grafting degree was obtained at the conditions of 6 h reaction time, $90^{\circ}C$ reaction temperature, and 40% $N$-vinyl-2-pyrrolidone concentration. The introduction of PVP was confirmed by ATR-FTIR, XPS, and SEM analysis.

본 연구의 목적은 대기압 플라즈마 처리된 평판형 폴리프로필렌(polypropylene, PP) 필름 표면 위에 폴리비닐피롤리돈(poly($N$-vinyl-2-pyrrolidone), PVP)을 그래프트 공중합시키기 위한 최적 조건을 찾는데 있다. 대기압 플라즈마 처리 조건은 RF power 200W, Ar 유속 6 LPM, 처리시간 30초, 처리 후 노출시간은 5분으로 고정하였다. 그래프트 공중합에서는 중합 시간, 중합 온도, 비닐피롤리돈($N$-vinyl-2-pyrrolidone, NVP) 농도의 조건을 각각 달리하여 표면 그래프트도의 변화를 조사하였다. 그 결과, 중합 시간 6시간, 중합 온도 $90^{\circ}C$, NVP 농도 40%에서 가장 높은 그래프트도를 나타내었다. ATR-FTIR, X-ray photoelectron spectroscopy(XPS), SEM 분석을 통해서도 PVP의 도입을 확인할 수 있었다.

Keywords

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