DOI: 10.1002/polb.10092. Small‐angle neutron scattering investigation of structural changes in nafion membranes induced by swelling with various solvents

Small‐angle neutron scattering investigation of structural changes in nafion membranes induced by swelling with various solvents

10.1002/polb.10092

Crossref journal-article

Wiley

Journal of Polymer Science Part B: Polymer Physics (311)

Abstract

AbstractThe structure of Nafion‐117 perfluorosulfonate ionomer membranes was investigated with small‐angle neutron scattering techniques. Structural changes induced by the swelling of the membranes with water, alcohols, and dipolar, aprotic solvents were monitored at solvent‐swelling levels ranging from approximately 2 vol % to greater than 50 vol %. Membranes swollen up to approximately 50 vol % solvent exhibited two scattering maxima, one known to be associated with ionic regions of the membrane structure and one known to be associated with correlation distances between crystalline regions in the membrane structure. The positions of both maxima shifted toward lower scattering vector values as the solvent content in the membrane increased. The shift in the position of both maxima was linearly related to the solvent volume fraction in the membrane. The Bragg spacings corresponding to both the ionic‐feature scattering maximum and the crystalline‐feature scattering maximum were plotted versus the solvent volume fraction in the membranes, and the data fit with linear regression. The slopes associated with the curves of the spacing versus the solvent volume fraction were greater for the crystalline‐feature spacing than for the ionic‐feature spacing for all solvents other than water; this was indicative of preferential segregation of nonaqueous solvents into regions of the structure not directly associated with the ionic scattering maximum. © 2002 John Wiley & Sons, Inc. J Polym Sci Part B: Polym Phys 40: 387–400, 2002; DOI 10.1002/polb.10092

Bibliography

Young, S. K., Trevino, S. F., & Beck Tan, N. C. (2002). Smallâangle neutron scattering investigation of structural changes in nafion membranes induced by swelling with various solvents. Journal of Polymer Science Part B: Polymer Physics, 40(4), 387â400. Portico.

Authors 3

Sandra K. Young (first)
S. F. Trevino (additional)
Nora C. Beck Tan (additional)

References 22 Referenced 72

10.1002/pol.1981.180190101
10.1002/pol.1981.180191103
10.1021/ma50006a032
10.1021/ma00229a028
10.1016/0032-3950(86)90080-8
10.1016/0032-3950(86)90286-8
10.1002/polb.1986.090240812
10.1021/ma970801v
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10.1016/S0032-3861(99)00770-3
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10.1002/macp.1994.021951204
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10.1021/ma60033a007
{'key': 'e_1_2_6_17_2', 'first-page': '80', 'volume': '38', 'author': 'Litt M. H.', 'year': '1997', 'journal-title': 'Polym Prepr (Am Chem Soc Div Polym Chem)'} / Polym Prepr (Am Chem Soc Div Polym Chem) by Litt M. H. (1997)
10.1016/0032-3950(90)90068-H
{'key': 'e_1_2_6_19_2', 'first-page': '419', 'volume': '35', 'author': 'Davis S. V.', 'year': '1994', 'journal-title': 'Polym Prepr (Am Chem Soc Div Polym Chem)'} / Polym Prepr (Am Chem Soc Div Polym Chem) by Davis S. V. (1994)
Young S. K.;Trevino S. F.;Beck Tan N. C.;Paul R. L.J Polym Sci Part B: Polym Phys submitted for publication 2001.
10.1002/(SICI)1099-0488(19970415)35:5<771::AID-POLB5>3.0.CO;2-P
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Dates

Type	When
Created	20 years, 10 months ago (Oct. 27, 2004, 5:11 p.m.)
Deposited	1 year, 10 months ago (Oct. 9, 2023, 11:28 p.m.)
Indexed	1 month, 2 weeks ago (July 19, 2025, 11:24 p.m.)
Issued	23 years, 7 months ago (Jan. 7, 2002)
Published	23 years, 7 months ago (Jan. 7, 2002)
Published Online	23 years, 7 months ago (Jan. 7, 2002)
Published Print	23 years, 6 months ago (Feb. 15, 2002)

Funders 0

None

BibTeX

@article{Young_2002, title={Small‐angle neutron scattering investigation of structural changes in nafion membranes induced by swelling with various solvents}, volume={40}, ISSN={1099-0488}, url={http://dx.doi.org/10.1002/polb.10092}, DOI={10.1002/polb.10092}, number={4}, journal={Journal of Polymer Science Part B: Polymer Physics}, publisher={Wiley}, author={Young, Sandra K. and Trevino, S. F. and Beck Tan, Nora C.}, year={2002}, month=jan, pages={387–400} }

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