Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Preparation of PEGDA/PETEDA Dendrimer Membranes for $CO_2$ Separation

$CO_2$ 분리를 위한 PEGDA/PETEDA dendrimer 막의 제조

  • Han, Na (Department of Industrial Chemistry, Sangmyung University) ;
  • Lee, Hyunkyung (Department of Industrial Chemistry, Sangmyung University)
  • 한나 (상명대학교 공업화학과) ;
  • 이현경 (상명대학교 공업화학과)
  • Received : 2013.01.08
  • Accepted : 2013.02.25
  • Published : 2013.02.28
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Abstract

PEGDA/PETEDA dendrimer composite membranes was prepared by UV photopolymerizing of poly ethylene glycol diacrylate (PEGDA) containing 5~15 wt% pentaerythrityl tetraethylenediamine (PETEDA) dendrimer. The prepared composite membrane was characterized by FT-IR, $^1H$-NMR and DSC. The glass transition temperature ($T_g$) of PEGDA/PETEDA dendrimer composite decreased with the increment of PETEDA dendrimer content. The $CO_2$ separation properties over $CH_4$ were investigated by changing the PETEDA dendrimer content and pressure. The composite membrane containing 10 wt% PETEDA dendrimer exhibited on excellent $CO_2/CH_4$ ideal selectivity of 31.8 and a $CO_2$ permeability of 162.2 barrer.

PEGDA/PETEDA dendrimer 막은 PEGDA에 5~15 wt%의 PETEDA dendrimer를 첨가하고 UV를 조사하여 제조하였다. 제조된 막의 특성은 FT-IR, $^1H$-NMR 그리고 DSC를 통해 분석하였다. PEGDA/PETEDA dendrimer 막의 유리전이온도($T_g$)는 PETEDA dendrimer의 함량이 증가할수록 감소하였다. $CH_4$에 대한 $CO_2$ 투과 특성은 PETEDA dendrimer의 함량과 압력을 변화시키며 조사하였다. 10 wt%의 PETEDA dendrimer를 포함하는 막의 투과도는 162.2 barrer였으나 $CO_2/CH_4$ 이상분리 인자는 31.8로 가장 높게 나타났다.

Keywords

References

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