The effect of temperature and humidity on the oxygen sorption in Diels-Alder polyphenylenes

Charles W. James; Chris Cornelius; Eva Marand

doi:10.1016/j.polymer.2009.05.004

The effect of temperature and humidity on the oxygen sorption in Diels-Alder polyphenylenes

Charles W. James, Chris Cornelius, Eva Marand

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

4 Scopus citations

Abstract

The gas transport properties of post-sulfonated Diels-Alder polyphenylene (SDAPP) membranes were measured and compared to poly(perfluoro sulfonic acid) (Nafion 112). The SDAPP materials had ion exchange capacities of 1.6 and 2.2 mequiv/g. The O₂ gas permeability in the SDAPP 2.2 was about half that observed in Nafion@ 112. The O₂ sorption in each membrane was measured in both the non-humidified and humidified state. In the non-humidified state, the O₂ sorption followed Henry's Law behavior. The enthalpy of sorption for the SDAPP materials in the dry state was about double that measured for Nafion@ 112. In the presence of moisture, the O₂ sorption followed Type IV behavior typically exhibited by hydrophilic polymers. The SDAPP samples had a higher percent wet-O₂ mass uptake compared to Nafion@ 112, because of a higher ion exchange capacity.

Original language	English (US)
Pages (from-to)	3220-3224
Number of pages	5
Journal	Polymer
Volume	50
Issue number	14
DOIs	https://doi.org/10.1016/j.polymer.2009.05.004
State	Published - Jul 3 2009
Externally published	Yes

Keywords

Oxygen sorption
Polyphenylenes
Proton exchange membranes

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1016/j.polymer.2009.05.004

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title = "The effect of temperature and humidity on the oxygen sorption in Diels-Alder polyphenylenes",

abstract = "The gas transport properties of post-sulfonated Diels-Alder polyphenylene (SDAPP) membranes were measured and compared to poly(perfluoro sulfonic acid) (Nafion 112). The SDAPP materials had ion exchange capacities of 1.6 and 2.2 mequiv/g. The O2 gas permeability in the SDAPP 2.2 was about half that observed in Nafion@ 112. The O2 sorption in each membrane was measured in both the non-humidified and humidified state. In the non-humidified state, the O2 sorption followed Henry's Law behavior. The enthalpy of sorption for the SDAPP materials in the dry state was about double that measured for Nafion@ 112. In the presence of moisture, the O2 sorption followed Type IV behavior typically exhibited by hydrophilic polymers. The SDAPP samples had a higher percent wet-O2 mass uptake compared to Nafion@ 112, because of a higher ion exchange capacity.",

keywords = "Oxygen sorption, Polyphenylenes, Proton exchange membranes",

author = "James, {Charles W.} and Chris Cornelius and Eva Marand",

year = "2009",

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language = "English (US)",

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TY - JOUR

T1 - The effect of temperature and humidity on the oxygen sorption in Diels-Alder polyphenylenes

AU - James, Charles W.

AU - Cornelius, Chris

AU - Marand, Eva

PY - 2009/7/3

Y1 - 2009/7/3

N2 - The gas transport properties of post-sulfonated Diels-Alder polyphenylene (SDAPP) membranes were measured and compared to poly(perfluoro sulfonic acid) (Nafion 112). The SDAPP materials had ion exchange capacities of 1.6 and 2.2 mequiv/g. The O2 gas permeability in the SDAPP 2.2 was about half that observed in Nafion@ 112. The O2 sorption in each membrane was measured in both the non-humidified and humidified state. In the non-humidified state, the O2 sorption followed Henry's Law behavior. The enthalpy of sorption for the SDAPP materials in the dry state was about double that measured for Nafion@ 112. In the presence of moisture, the O2 sorption followed Type IV behavior typically exhibited by hydrophilic polymers. The SDAPP samples had a higher percent wet-O2 mass uptake compared to Nafion@ 112, because of a higher ion exchange capacity.

AB - The gas transport properties of post-sulfonated Diels-Alder polyphenylene (SDAPP) membranes were measured and compared to poly(perfluoro sulfonic acid) (Nafion 112). The SDAPP materials had ion exchange capacities of 1.6 and 2.2 mequiv/g. The O2 gas permeability in the SDAPP 2.2 was about half that observed in Nafion@ 112. The O2 sorption in each membrane was measured in both the non-humidified and humidified state. In the non-humidified state, the O2 sorption followed Henry's Law behavior. The enthalpy of sorption for the SDAPP materials in the dry state was about double that measured for Nafion@ 112. In the presence of moisture, the O2 sorption followed Type IV behavior typically exhibited by hydrophilic polymers. The SDAPP samples had a higher percent wet-O2 mass uptake compared to Nafion@ 112, because of a higher ion exchange capacity.

KW - Oxygen sorption

KW - Polyphenylenes

KW - Proton exchange membranes

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DO - 10.1016/j.polymer.2009.05.004

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JO - Polymer

JF - Polymer

IS - 14

ER -

The effect of temperature and humidity on the oxygen sorption in Diels-Alder polyphenylenes

Abstract

Keywords

ASJC Scopus subject areas

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