Characterization of partially sulfonated polyoxadiazoles and oxadiazole-triazole copolymers

被引：55

作者：

Gomes, Dominique ^{[1
]}

Roeder, Jerusa ^{[1
]}

Ponce, Mariela L. ^{[1
]}

Nunes, Suzana P. ^{[1
]}

机构：

[1] GKSS Res Ctr Geesthacht GmbH, Polymer Res Inst, D-21502 Geesthacht, Germany

来源：

JOURNAL OF MEMBRANE SCIENCE | 2007年 / 295卷 / 1-2期

关键词：

polyoxadiazole; polytriazole; sulfonation; proton conductivity; fuel cell;

D O I：

10.1016/j.memsci.2007.02.046

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Experimental evidences regarding the sulfonation of polyoxadiazole and oxadiazole-triazole copolymers during the preparation are given. The structures of the polymers were qualitatively and quantitatively characterized by elemental analysis, H-1 NMR, and FTIR. Polymers with high molecular weights (up to 470,000 g/mol) exhibiting highly oxidative stability are obtained allowing the casting of mechanically stable membranes with high storage modulus (about 4 GPa at 100 degrees C) and high proton conductivity values (order of magnitude of 10(-2) S cm(-1) at 80 degrees C). (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：121 / 129

页数：9

共 39 条

[1] Polymeric proton conducting membranes for medium temperature fuel cells (110-160°C) [J].

Alberti, G ;

Casciola, M ;

Massinelli, L ;

Bauer, B .

JOURNAL OF MEMBRANE SCIENCE, 2001, 185 (01) :73-81

[2] Aliphatic/aromatic polyimide lonomers as a proton conductive membrane for fuel cell applications [J].

Asano, N ;

Aoki, M ;

Suzuki, S ;

Miyatake, K ;

Uchida, H ;

Watanabe, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (05) :1762-1769

[3] Novel poly(arylene ether)s with pendent trifluoromethyl groups [J].

Banerjee, S ;

Maier, G ;

Burger, R .

MACROMOLECULES, 1999, 32 (13) :4279-4289

[4] Proton conduction in acid doped polybenzimidazole [J].

Bouchet, R ;

Siebert, E .

SOLID STATE IONICS, 1999, 118 (3-4) :287-299

[5] Poly(phthalazinone ether ketone) ionomers synthesized via N-C coupling reaction for fuel cell applications [J].

Chen, YL ;

Meng, YZ ;

Li, XH ;

Hay, AS .

MACROMOLECULES, 2005, 38 (24) :10007-10013

[6]

COTTER RJ, 1972, HETEROCYCLIC RING B1, V13

[7] Synthesis and characterization of sulfonated polysulfone membranes for direct methanol fuel cells [J].

Fu, Y. -Z. ;

Manthiram, A. .

JOURNAL OF POWER SOURCES, 2006, 157 (01) :222-225

[8] Study of the synthesis of poly(4,4′-diphenylether-1,3,4-oxadiazole) in solutions of poly(phosphoric acid) [J].

Gomes, D ;

Borges, CP ;

Pinto, JC .

POLYMER, 2001, 42 (03) :851-865

[9] Effects of reaction variables on the reproducibility of the syntheses of poly-1,3,4-oxadiazole [J].

Gomes, D ;

Borges, C ;

Pinto, JC .

POLYMER, 2004, 45 (15) :4997-5004

[10] Determination of hydrazide content in poly(oxadiazole-hydrazide) copolymers by NMR and thermal analysis [J].

Gomes, D ;

Pinto, JC ;

Borges, C .

POLYMER, 2003, 44 (20) :6223-6233

← 1 2 3 4 →