DOI: 10.1002/app.1995.070571307. Effect of doping treatment on gas transport properties and on separation factors of polyaniline memebranes

Effect of doping treatment on gas transport properties and on separation factors of polyaniline memebranes

10.1002/app.1995.070571307

Crossref journal-article

Wiley

Journal of Applied Polymer Science (311)

Abstract

AbstractGas permeation experiments of H2, O2, CO2, N2, and CH2 were carried out with freestanding films of the conjugated polymer polyaniline (PANi). At first annealed to remove residual solvent, PANi membranes were doped (i.e., protonated) in a strongly acidic medium (HCl 4M), undoped in a basic medium (NH4OH 1M), and redoped in a slightly acidic medium (HCl 10−2M). Protonation and deprotonation kinetics were studied by elementary analysis Gas permeation experiments were performed with the annealed, doped, undoped, and redoped PANi films. The gas transport mechanism was clearly influenced by the diffusivity factor and it obeyed a Fickian diffusion model. From the variations in permeability coefficients with the doping treatment, gases could be divided in two subgroups comprising H2, O2, and CO2 on one hand and N2 and CH4 on the other. After the doping–undoping–redoping process, gas fluxes were increased by 15% for the smaller gases and were decreased by 45% for the larger gases. As a consequence gas separation factors were approximately doubled for a gas pair involving the two subgroups and these were unchanged for a gas pair involving only one subgroup. The highest O2/N2 and CO2/CH4 selectivity coefficients were, respectively, equal to 14 and 78. © 1995 John Wiley & Sons, Inc.

Bibliography

Rebattet, L., Escoubes, M., Genies, E., & Pineri, M. (1995). Effect of doping treatment on gas transport properties and on separation factors of polyaniline memebranes. Journal of Applied Polymer Science, 57(13), 1595â1604. Portico.

Authors 4

L. Rebattet (first)
M. Escoubes (additional)
E. Genies (additional)
M. Pineri (additional)

References 18 Referenced 38

10.1016/S0376-7388(00)85068-1
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Dates

Type	When
Created	22 years, 4 months ago (April 15, 2003, 6:35 p.m.)
Deposited	1 year, 9 months ago (Nov. 20, 2023, 2:25 p.m.)
Indexed	2 months ago (June 26, 2025, 12:09 a.m.)
Issued	29 years, 11 months ago (Sept. 26, 1995)
Published	29 years, 11 months ago (Sept. 26, 1995)
Published Online	22 years, 5 months ago (March 10, 2003)
Published Print	29 years, 11 months ago (Sept. 26, 1995)

Funders 0

None

BibTeX

@article{Rebattet_1995, title={Effect of doping treatment on gas transport properties and on separation factors of polyaniline memebranes}, volume={57}, ISSN={1097-4628}, url={http://dx.doi.org/10.1002/app.1995.070571307}, DOI={10.1002/app.1995.070571307}, number={13}, journal={Journal of Applied Polymer Science}, publisher={Wiley}, author={Rebattet, L. and Escoubes, M. and Genies, E. and Pineri, M.}, year={1995}, month=sep, pages={1595–1604} }

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