Steady-state and time-resolved fluorescence spectroscopic probing of microstructures and properties of perfluorinated polyelectrolyte membranes

Christopher E. Bunker; Bin Ma; Kenya J. Simmons; Harry W. Rollins; Jin Tao Liu; Jing Ji Ma; Charles W. Martin; Darryl D. DesMarteau; Ya Ping Sun

doi:10.1016/S0022-0728(98)00250-2

Steady-state and time-resolved fluorescence spectroscopic probing of microstructures and properties of perfluorinated polyelectrolyte membranes

Christopher E. Bunker, Bin Ma, Kenya J. Simmons, Harry W. Rollins, Jin Tao Liu, Jing Ji Ma, Charles W. Martin, Darryl D. DesMarteau, Ya Ping Sun

Energy & Environmental Science & Technology

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

18 Scopus citations

Abstract

A systematic luminescence spectroscopic study of the microstructures and properties of Nafion®, the Dow Chemical films, and the newly synthesized sulfonimide ionomer membrane is reported. The strongly environment-sensitive luminescent probes 6-propionyl-2-(N,N-dimethylamino)naphthalene, 4-(N,N-dimethylamino)benzonitrile, pyrene, and ethidium bromide were used. The results suggest that the different perfluorinated ionomer membranes have generally similar properties with respect to the luminescent molecular probes and that the membrane structures consist of a substantial region that may be characterized as a heterogeneous mixture of water molecules and branches of the perfluorinated polymers. In addition, the effects of thermally stressing the ionomer membranes in an aqueous solution at temperatures up to 250°C on the properties of the membranes are evaluated and discussed.

Original language	English
Pages (from-to)	15-28
Number of pages	14
Journal	Journal of Electroanalytical Chemistry
Volume	459
Issue number	1
DOIs	https://doi.org/10.1016/S0022-0728(98)00250-2
State	Published - Nov 23 1998

Keywords

Luminescent probes
Nafion®
Sulfonimide ionomer

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10.1016/S0022-0728(98)00250-2

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Bunker, C. E., Ma, B., Simmons, K. J., Rollins, H. W., Liu, J. T., Ma, J. J., Martin, C. W., DesMarteau, D. D., & Sun, Y. P. (1998). Steady-state and time-resolved fluorescence spectroscopic probing of microstructures and properties of perfluorinated polyelectrolyte membranes. Journal of Electroanalytical Chemistry, 459(1), 15-28. https://doi.org/10.1016/S0022-0728(98)00250-2

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title = "Steady-state and time-resolved fluorescence spectroscopic probing of microstructures and properties of perfluorinated polyelectrolyte membranes",

abstract = "A systematic luminescence spectroscopic study of the microstructures and properties of Nafion{\textregistered}, the Dow Chemical films, and the newly synthesized sulfonimide ionomer membrane is reported. The strongly environment-sensitive luminescent probes 6-propionyl-2-(N,N-dimethylamino)naphthalene, 4-(N,N-dimethylamino)benzonitrile, pyrene, and ethidium bromide were used. The results suggest that the different perfluorinated ionomer membranes have generally similar properties with respect to the luminescent molecular probes and that the membrane structures consist of a substantial region that may be characterized as a heterogeneous mixture of water molecules and branches of the perfluorinated polymers. In addition, the effects of thermally stressing the ionomer membranes in an aqueous solution at temperatures up to 250°C on the properties of the membranes are evaluated and discussed.",

keywords = "Luminescent probes, Nafion{\textregistered}, Sulfonimide ionomer",

author = "Bunker, {Christopher E.} and Bin Ma and Simmons, {Kenya J.} and Rollins, {Harry W.} and Liu, {Jin Tao} and Ma, {Jing Ji} and Martin, {Charles W.} and DesMarteau, {Darryl D.} and Sun, {Ya Ping}",

note = "Funding Information: Financial support from the Department of Energy through DOE/EPSCoR cooperative agreement DE-FG02-9lER75666 is gratefully acknowledged. Kenya J. Simmons was a participant in the Summer Undergraduate Research Program sponsored jointly by the National Science Foundation (CHE-9100387) and by Clemson University.",

year = "1998",

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doi = "10.1016/S0022-0728(98)00250-2",

language = "English",

volume = "459",

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T1 - Steady-state and time-resolved fluorescence spectroscopic probing of microstructures and properties of perfluorinated polyelectrolyte membranes

AU - Bunker, Christopher E.

AU - Ma, Bin

AU - Simmons, Kenya J.

AU - Rollins, Harry W.

AU - Liu, Jin Tao

AU - Ma, Jing Ji

AU - Martin, Charles W.

AU - DesMarteau, Darryl D.

AU - Sun, Ya Ping

N1 - Funding Information: Financial support from the Department of Energy through DOE/EPSCoR cooperative agreement DE-FG02-9lER75666 is gratefully acknowledged. Kenya J. Simmons was a participant in the Summer Undergraduate Research Program sponsored jointly by the National Science Foundation (CHE-9100387) and by Clemson University.

PY - 1998/11/23

Y1 - 1998/11/23

N2 - A systematic luminescence spectroscopic study of the microstructures and properties of Nafion®, the Dow Chemical films, and the newly synthesized sulfonimide ionomer membrane is reported. The strongly environment-sensitive luminescent probes 6-propionyl-2-(N,N-dimethylamino)naphthalene, 4-(N,N-dimethylamino)benzonitrile, pyrene, and ethidium bromide were used. The results suggest that the different perfluorinated ionomer membranes have generally similar properties with respect to the luminescent molecular probes and that the membrane structures consist of a substantial region that may be characterized as a heterogeneous mixture of water molecules and branches of the perfluorinated polymers. In addition, the effects of thermally stressing the ionomer membranes in an aqueous solution at temperatures up to 250°C on the properties of the membranes are evaluated and discussed.

AB - A systematic luminescence spectroscopic study of the microstructures and properties of Nafion®, the Dow Chemical films, and the newly synthesized sulfonimide ionomer membrane is reported. The strongly environment-sensitive luminescent probes 6-propionyl-2-(N,N-dimethylamino)naphthalene, 4-(N,N-dimethylamino)benzonitrile, pyrene, and ethidium bromide were used. The results suggest that the different perfluorinated ionomer membranes have generally similar properties with respect to the luminescent molecular probes and that the membrane structures consist of a substantial region that may be characterized as a heterogeneous mixture of water molecules and branches of the perfluorinated polymers. In addition, the effects of thermally stressing the ionomer membranes in an aqueous solution at temperatures up to 250°C on the properties of the membranes are evaluated and discussed.

KW - Luminescent probes

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KW - Sulfonimide ionomer

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SN - 1572-6657

VL - 459

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JF - Journal of Electroanalytical Chemistry

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ER -

Steady-state and time-resolved fluorescence spectroscopic probing of microstructures and properties of perfluorinated polyelectrolyte membranes

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Keywords

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