Synthesis and characterization of novel acid-base polymer blends for application in membrane fuel cells

被引：417

作者：

Kerres, J ^{[1
]}

Ullrich, A ^{[1
]}

Meier, F ^{[1
]}

Häring, T ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Chem Verfahrenstech, D-70199 Stuttgart, Germany

来源：

SOLID STATE IONICS | 1999年 / 125卷 / 1-4期

关键词：

acid-base polymer blends; proton conductivity; membrane fuel cells; specific interaction; FTIR; thermal stability; proton;

D O I：

10.1016/S0167-2738(99)00181-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this contribution novel acid-base polymer blend membranes are introduced. The membranes are composed of sulfonated poly(etheretherketone) sPEEK Victrex or poly(ethersulfone) sPSU Udel(R) as the acidic compounds, and of PSU Udel(R) diaminated at the ortho position to the sulfone bridge, or poly(4-vinylpyridine), poly(benzimidazole) PBI CELAZOLE(R), or poly(ethyleneimine) PEI (Aldrich) as the basic compounds, The membranes showed good proton conductivities at ion-exchange capacities IEC of 1 (IEC = meg SO3H/g dry membrane), and they showed excellent thermal stabilities (decomposition temperatures >270 degrees C). Two of the membranes were tested in a H-2 membrane fuel cell and showed good performance. The specific interaction of the SO3H groups and of the basic N groups was investigated via FTIR for the sulfonated PSU/diaminated PSU and for the sulfonated PSU/poly(4-vinylpyridine) (Pyr) blend. It could be proved that in the dry membranes polysalt groups exist formed by the following acid-base reaction: PSU-SO3H + H2N-PSU --> [PSU-SO3](-) (+)[H3N-PSU], and PSU-SO3H + P --> [PSU-SO3](-) (+)[H-Pyr]. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：243 / 249

页数：7

共 9 条

[1] Development and characterization of ion-exchange polymer blend membranes [J].

Cui, W ;

Kerres, J ;

Eigenberger, G .

SEPARATION AND PURIFICATION TECHNOLOGY, 1998, 14 (1-3) :145-154

[2] DYNAMIC-MECHANICAL AND SPECTROSCOPIC STUDY OF IONOMER BLENDS BASED ON CARBOXYLATED OR SULFONATED FLEXIBLE POLYSTYRENE AND RIGID POLY(DIACETYLENES) WITH FUNCTIONAL SIDE-GROUPS [J].

EISENBACH, CD ;

HOFMANN, J ;

MACKNIGHT, WJ .

MACROMOLECULES, 1994, 27 (12) :3162-3165

[3] CHEMICAL MODIFICATION OF POLYSULFONES .2. AN EFFICIENT METHOD FOR INTRODUCING PRIMARY AMINE GROUPS ONTO THE AROMATIC CHAIN [J].

GUIVER, MD ;

ROBERTSON, GP ;

FOLEY, S .

MACROMOLECULES, 1995, 28 (23) :7612-7621

[4]

HELMERMETZMANN F, 1993, Patent No. 0574791

[5]

Kerres J, 1996, J POLYM SCI POL CHEM, V34, P2421

[6] DEVELOPMENT OF SOLID POLYMER ELECTROLYTES FOR WATER ELECTROLYSIS AT INTERMEDIATE TEMPERATURES [J].

LINKOUS, CA .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 1993, 18 (08) :641-646

[7]

LUX KW, 1994, P ELECTROCHEM SOC, V94, P302

[8]

WALKER M, IN PRESS J APPL POLY

[9] WATER-UPTAKE BY AND TRANSPORT THROUGH NAFION(R) 117 MEMBRANES [J].

ZAWODZINSKI, TA ;

DEROUIN, C ;

RADZINSKI, S ;

SHERMAN, RJ ;

SMITH, VT ;

SPRINGER, TE ;

GOTTESFELD, S .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1993, 140 (04) :1041-1047

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