Studies of sulfonated polyphenylene containing fluorine moiety via nickel catalyzed C–C coupling polymerization

Choi, Seong-Young; Lim, Youngdon; Lee, Soonho; Jang, Hohyoun; Hossain, Awlad; Joo, Hyunho; Ju, Hyunchel; Hong, Tae-Whan; Kim, Whangi

doi:10.1016/j.ijhydene.2014.02.157

Cited by 1 publication

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“…In spite of these shortcomings, several interesting studies of soluble polyphenylenes with sulfonic acid groups as fuel cell membrane materials have been reported. [10][11][12][13][14][15][16] However, only a few of these studies addressed the issue of poor water retention and drying-out the membranes at low relative humidity (RH).…”

Section: Introductionmentioning

confidence: 99%

Poly(arylenesulfonic acids) with Frozen-In Free Volume as Hydrogen Fuel Cell Membrane Materials

Litt

2015

Polymer Reviews

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A new class of proton conducting membranes based on rigid-rod, liquid crystalline, aromatic sulfonic acid polymers, and copolymers was developed at Case Western Reserve University over the past 15 years. Sulfonic acid crowding or incorporation of bulky comonomers forced the chains apart and induced nanoporosity (called frozen in free volume, FFV) that helped in water retention at low external humidity. Very high proton conductivity of these materials made them excellent candidates for fuel cell membranes, especially for operation at elevated temperature and low humidity. Initial work focused on poly(naphthalene bis-tetracarboximides), which were found to be hydrolytically unstable. Then the focus shifted to chemically stable poly(phenylene sulfonic acids), including their copolymers, grafts, and crosslinked derivatives. This paper tracks the study of these remarkable polymers from initial work on polyimides to recent results where polyphenylene membranes were fabricated and tested in a hydrogen/air fuel cell.

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Section: Introductionmentioning

confidence: 99%

Poly(arylenesulfonic acids) with Frozen-In Free Volume as Hydrogen Fuel Cell Membrane Materials

Litt

2015

Polymer Reviews

View full text Add to dashboard Cite

show abstract

Studies of sulfonated polyphenylene containing fluorine moiety via nickel catalyzed C–C coupling polymerization

Cited by 1 publication

References 34 publications

Poly(arylenesulfonic acids) with Frozen-In Free Volume as Hydrogen Fuel Cell Membrane Materials

Poly(arylenesulfonic acids) with Frozen-In Free Volume as Hydrogen Fuel Cell Membrane Materials

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