Transport in sulfonated poly(phenylene)s: Proton conductivity, permeability, and the state of water

被引：102

作者：

Hickner, Michael A. ^{[1
]}

Fujimoto, Cy H. ^{[1
]}

Cornelius, Chris J. ^{[1
]}

机构：

[1] Sandia Natl Labs, Chem & Biol Syst Dept, Albuquerque, NM 87185 USA

来源：

POLYMER | 2006年 / 47卷 / 11期

关键词：

fuel cell; proton exchange membrane; state of water;

D O I：

10.1016/j.polymer.2006.02.034

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The transport properties of a series of sulfonated poly(phenylene)s were found to strongly correlate to the ion exchange capacity of the polymer. Sulfonated poly(phenylene) membranes have shown promise as proton exchange membranes for fuel cells. In general, these materials have minimal methanol and glucose crossover while maintaining high proton conductivity, which is necessary for efficient operation of fuel cells powered by liquid fuels. Proton conductivity in addition to methanol and glucose permeability were compared to Nafion as a function of ion exchange capacity. It was found that the transport in Nation membranes was much higher than that in the sulfonated poly(phenylene)s for a given ion exchange capacity. Water content and its absorbed state within membranes were elucidated by differential scanning calorimetry in order to provide insight as to how the transport properties varied between the materials studied. The domain morphology of these ionomers was imaged with transmission electron microscopy in order to contrast the morphological differences between Nafion and the sulfonated poly(phenylene) series. (c) 2006 Published by Elsevier Ltd.

引用

页码：4238 / 4244

页数：7

共 30 条

[1] Pervaporation separation of water-acetic acid mixtures using polymeric membranes [J].

Aminabhavi, TM ;

Toti, US .

DESIGNED MONOMERS AND POLYMERS, 2003, 6 (03) :211-236

[2] Enzymatic biofuel cells for Implantable and microscale devices [J].

Barton, SC ;

Gallaway, J ;

Atanassov, P .

CHEMICAL REVIEWS, 2004, 104 (10) :4867-4886

[3]

BOLTO BA, 2000, WATER MANAGE PURIF C, V2, P227

[4]

BROMBERG LE, 1987, SYNTH POLYM MEMBR P, V29, P397

[5] THE THERMODYNAMIC STATE OF WATER IN CELLULOSE-ACETATE MEMBRANES [J].

BURGHOFF, HG ;

PUSCH, W .

POLYMER ENGINEERING AND SCIENCE, 1980, 20 (04) :305-309

[6]

Cussler E. L., 2009, DIFFUSION MASS TRANS

[7] A self-organized network of nanochannels enhances ion conductivity through polymer films [J].

Ding, JF ;

Chuy, C ;

Holdcroft, S .

CHEMISTRY OF MATERIALS, 2001, 13 (07) :2231-+

[8] Ionomeric poly(phenylene) prepared by diels-alder polymerization: Synthesis and physical properties of a novel polyelectrolyte [J].

Fujimoto, CH ;

Hickner, MA ;

Cornelius, CJ ;

Loy, DA .

MACROMOLECULES, 2005, 38 (12) :5010-5016

[9] STATES OF WATER IN CATIONICALLY CHARGED POLY(VINYL ALCOHOL) MEMBRANES [J].

FUSHIMI, H ;

ANDO, I ;

IIJIMA, T .

POLYMER, 1991, 32 (02) :241-248

[10] Alternative polymer systems for proton exchange membranes (PEMs) [J].

Hickner, MA ;

Ghassemi, H ;

Kim, YS ;

Einsla, BR ;

McGrath, JE .

CHEMICAL REVIEWS, 2004, 104 (10) :4587-4611

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