멤브레인 (Membrane Journal)

  • 제34권5호
  • /
  • Pages.304-317
  • /
  • 2024
  • /
  • 1226-0088(pISSN)
  • /
  • 2288-7253(eISSN)
한국막학회 (The Membrane Society of Korea)
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그래핀 옥사이드를 포함한 PEO 가교 막: 분자 및 이온 전도에 미치는 플레이크 크기의 영향

Crosslinked PEO Membranes Embedded with Graphene Oxide: Effect of Flake Size on Molecular and Ionic Transport

  • 장준규 (한양대학교 에너지공학과) ;
  • 박호범 (한양대학교 에너지공학과)
  • Jun Kyu Jang (Department of Energy Engineering, Hanyang University) ;
  • Ho Bum Park (Department of Energy Engineering, Hanyang University)
  • 투고 : 2024.10.11
  • 심사 : 2024.10.22
  • 발행 : 2024.10.30
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초록

그래핀 산화물(GO), 폴리에틸렌 글리콜 다이아크릴레이트(PEGDA), 폴리에틸렌 글리콜 메틸 에터 아크릴레이트(PEGMEA)의 나노복합체를 자외선 광중합을 통해 합성하였다. GO는 가교된 폴리에틸렌 옥사이드(XPEO) 매트릭스 내에 최대 1.0 wt% 농도까지 균일하게 분산시켰다. 더 높은 농도에서는 GO가 응집되는 경향을 보였다. 잘 분산된 GO는 친수성 PEO 사슬과 추가적인 화학적 가교 네트워크를 형성했다. XPEO-GO 나노복합체는 GO 농도에 따라 기계적 강도 및 염과 가스에 대한 차단 특성이 향상된 것으로 나타났다. 이 연구는 다양한 GO 농도와 플레이크 크기를 가진 XPEO-GO 하이드로겔의 제조 및 특성화를 다루고 있다. 이러한 특성은 나노복합 하이드로겔이 강화된 XPEO 기반 바이오소재 및 고급 항균성 한외여과(UF) 친수성 코팅에서의 잠재적 응용 가능성을 시사한다.

A nanocomposite of graphene oxide (GO), poly(ethylene glycol) diacrylate (PEGDA), and poly(ethylene glycol) methyl ether acrylate (PEGMEA) was synthesized through UV photopolymerization. We achieved uniform dispersion of GO within the crosslinked poly(ethylene oxide)-based (XPEO) matrix at concentrations up to 1.0 wt%. At higher concentrations, GO tended to aggregate. The well-dispersed GO formed an additional chemical crosslinked network with the hydrophilic PEO chains. The XPEO-GO nanocomposite demonstrated improved mechanical strength and enhanced barrier properties against salts and gases, depending on GO concentration. This work details the preparation and characterization of XPEO-GO hydrogels with varying GO concentrations and flake sizes. These properties suggest potential applications of the nanocomposite hydrogel in reinforced XPEO-based biomaterials and advanced antibacterial ultrafiltration (UF) hydrophilic coatings.

키워드

과제정보

This work was supported by the Materials & Components Technology Development Program (Project number: 20011497) funded by the Ministry of Trade, Industry, & Energy (MOTIE, Korea).

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