Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Gas Permeation Characteristics of PTMSP/PMMH Dendrimer Composite Membranes

PTMSP/PMMH Dendrimer 복합막의 기체투과특성

  • Published : 2008.09.30
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Abstract

PTMSP/PMMH dendrimer composite membranes were made by dispersing $0{\sim}20$ wt% (based on polymer content) PMMH dendrimer nanoparticles in the PTMSP casting solution. The effect of PMMH dendrimer on gas permeability characteristics of the composite membranes was investigated. The permeabilities of $H_2,\;N_2,\;CO_2$, and $CH_4$ decreased as the PMMH dendrimer content within PTMSP increased. The permeabilities of different gases except hydrogen in PTMSP/PMMH dendrimer membranes follow the order: $N_2\;<\;CH_4\;<\;CO_2$ which are consistent with the order of critical temperature ($N_2\;<\;CH_4\;<\;CO_2$). The selectivities of gases for $N_2$ increased as the PMMH dendrimer content within PTMSP increased. The $CO_2/N_2$ selectivity increased from 5.6 up to 16.9.

PTMSP에 $0{\sim}20$ wt% PMMH dendrimer 나노입자를 가하여 PTMSP/PMMH dendrimer 복합막을 제조하였다. 복합막의 기체 투과특성에 미치는 PMMH denimer의 영향을 조사하였다. $H_2,\;N_2,\;CO_2,\;CH_4$의 투과도는 PTMSP 내 PMMH endrimer의 함량이 증가하면서 감소하였다. PTMSP/PMMH dendrimer 복합막에서 수소를 제외한 다른 기체들의 투과도 순서는 $N_2\;<\;CH_4\;<\;CO_2$이며, 이것은 기체의 임계온도의 순서 $N_2\;<\;CH_4 <\;CO_2$와 일치하고 있다. $N_2$에 대한 기체의 선택도는 PTMSP 내의 PMMH denimer의 함량이 증가하면서 증가하였다. $CO_2/N_2$ 선택도는 5.6에서 16.9로 증가하였다.

Keywords

References

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