Proton-conducting polyhedral oligosilsesquioxane nanoadditives for sulfonated polyphenylsulfone hydrogen fuel cell proton exchange membranes

被引：66

作者：

Hartmann-Thompson, Claire ^{[1
]}

Merrington, Adrian ^{[1
]}

Carver, Peter I. ^{[1
]}

Keeley, Douglas L. ^{[1
]}

Rousseau, Joseph L. ^{[1
]}

Hucul, Dennis ^{[1
]}

Bruza, Kenneth J. ^{[1
]}

Thomas, Lowell S. ^{[1
]}

Keinath, Steven E. ^{[1
]}

Nowak, Robert M. ^{[1
]}

Katona, Denise M. ^{[2
]}

Santurri, Pasco R. ^{[2
]}

机构：

[1] Michigan Mol Inst, Midland, MI 48640 USA

[2] Chemsultants Int, Mentor, OH 44060 USA

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2008年 / 110卷 / 02期

关键词：

fuel cell; polyhedral oligosilsesquioxane; sulfonation; polyphenylsulfone; proton exchange membrane; composite; additives; ionomers; membranes; nanotechnology;

D O I：

10.1002/app.28665

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Three novel polyhedral oligosilsesquioxane (POSS) nanofillers functionalized with proton-conducting sulfonic acid groups, mixed sulfonic acid and alkyl groups, and phosphonic acid groups were synthesized, characterized by IR, H-1 and C-13 NMR, and MALDI-TOF MS, and formulated into sulfonated polyphenylsulfone (S-PPSU) carrier polymers. High quality films were cast from 1-methyl-2-pyrrolidinone (NMP), and through-plane and in-plane proton conductivity, mechanical properties, water uptake, dimensional stability, and leaching behavior were measured to assess their suitability for use as hydrogen fuel cell proton exchange membranes. Various nano-filler loadings and S-PPSU sulfonation levels were studied. The morphologies of the composite membranes were determined by TEM and SEM X-ray mapping. When compared with NAfion(R), the POSS-S-PPSU composite membranes exhibited comparable proton conductivity in combination with superior dimensional stability, heat resistance, and mechanical strength. When compared with control S-PSSU membranes, the composite POSS-S-PPSU membranes exhibited superior conductivity, comparabel dimensional stability, and slightly decreased mechanical strength. (c) 2008 Wiley Periodicals, Inc.

引用

页码：958 / 974

页数：17

共 65 条

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