Gas permeation through poly (dimethylsiloxane)-plasma polymer composite membranes

Sae Joong Oh; W. P. Zurawsky

doi:10.1016/0376-7388(96)00139-1

Gas permeation through poly (dimethylsiloxane)-plasma polymer composite membranes

Sae Joong Oh, W. P. Zurawsky

Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The permeation of CO₂, O₂, N₂, and CH₄ through composite membranes consisting of poly(dimethylsiloxane) (PDMS) substrates coated with fluorine rich plasma polymers was studied. Measurements were made with different thicknesses of plasma polymer (O to 1 μm) and at different temperatures between 35 and 75°C, which allows us to determine the permeability coefficients and permeation activation energies of each layer. The results are compared to a simple resistance in series permeation model. For CH₄ and N₂ the permeabilities of the composite membranes deviate from the resistance in series model. This is most likely due to plasma modification of the PDMS surface during the early stages of plasma polymerization.

Original language	English (US)
Pages (from-to)	89-99
Number of pages	11
Journal	Journal of Membrane Science
Volume	120
Issue number	1
DOIs	https://doi.org/10.1016/0376-7388(96)00139-1
State	Published - Oct 30 1996

Keywords

Composite membranes
Gas and vapor permeation
Plasma polymerized membranes

ASJC Scopus subject areas

Biochemistry
General Materials Science
Physical and Theoretical Chemistry
Filtration and Separation

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10.1016/0376-7388(96)00139-1

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abstract = "The permeation of CO2, O2, N2, and CH4 through composite membranes consisting of poly(dimethylsiloxane) (PDMS) substrates coated with fluorine rich plasma polymers was studied. Measurements were made with different thicknesses of plasma polymer (O to 1 μm) and at different temperatures between 35 and 75°C, which allows us to determine the permeability coefficients and permeation activation energies of each layer. The results are compared to a simple resistance in series permeation model. For CH4 and N2 the permeabilities of the composite membranes deviate from the resistance in series model. This is most likely due to plasma modification of the PDMS surface during the early stages of plasma polymerization.",

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AU - Oh, Sae Joong

AU - Zurawsky, W. P.

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N2 - The permeation of CO2, O2, N2, and CH4 through composite membranes consisting of poly(dimethylsiloxane) (PDMS) substrates coated with fluorine rich plasma polymers was studied. Measurements were made with different thicknesses of plasma polymer (O to 1 μm) and at different temperatures between 35 and 75°C, which allows us to determine the permeability coefficients and permeation activation energies of each layer. The results are compared to a simple resistance in series permeation model. For CH4 and N2 the permeabilities of the composite membranes deviate from the resistance in series model. This is most likely due to plasma modification of the PDMS surface during the early stages of plasma polymerization.

AB - The permeation of CO2, O2, N2, and CH4 through composite membranes consisting of poly(dimethylsiloxane) (PDMS) substrates coated with fluorine rich plasma polymers was studied. Measurements were made with different thicknesses of plasma polymer (O to 1 μm) and at different temperatures between 35 and 75°C, which allows us to determine the permeability coefficients and permeation activation energies of each layer. The results are compared to a simple resistance in series permeation model. For CH4 and N2 the permeabilities of the composite membranes deviate from the resistance in series model. This is most likely due to plasma modification of the PDMS surface during the early stages of plasma polymerization.

KW - Composite membranes

KW - Gas and vapor permeation

KW - Plasma polymerized membranes

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Gas permeation through poly (dimethylsiloxane)-plasma polymer composite membranes

Abstract

Keywords

ASJC Scopus subject areas

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