Characterization of partially sulfonated polyoxadiazoles and oxadiazole-triazole copolymers

Dominique Gomes; Jerusa Roeder; Mariela L. Ponce; Suzana P. Nunes

doi:10.1016/j.memsci.2007.02.046

Characterization of partially sulfonated polyoxadiazoles and oxadiazole-triazole copolymers

Dominique Gomes^*, Jerusa Roeder, Mariela L. Ponce, Suzana P. Nunes

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

63 Scopus citations

Abstract

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, ¹H 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 °C) and high proton conductivity values (order of magnitude of 10^-2 S cm^-1 at 80 °C).

Original language	English (US)
Pages (from-to)	121-129
Number of pages	9
Journal	Journal of Membrane Science
Volume	295
Issue number	1-2
DOIs	https://doi.org/10.1016/j.memsci.2007.02.046
State	Published - May 31 2007
Externally published	Yes

Keywords

Fuel cell
Polyoxadiazole
Polytriazole
Proton conductivity
Sulfonation

ASJC Scopus subject areas

Biochemistry
General Materials Science
Physical and Theoretical Chemistry
Filtration and Separation

Access to Document

10.1016/j.memsci.2007.02.046

Cite this

@article{813eb3d275cd4db7a29566d6cb4ac5bf,

title = "Characterization of partially sulfonated polyoxadiazoles and oxadiazole-triazole copolymers",

abstract = "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, 1H 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 °C) and high proton conductivity values (order of magnitude of 10-2 S cm-1 at 80 °C).",

keywords = "Fuel cell, Polyoxadiazole, Polytriazole, Proton conductivity, Sulfonation",

author = "Dominique Gomes and Jerusa Roeder and Ponce, {Mariela L.} and Nunes, {Suzana P.}",

year = "2007",

month = may,

day = "31",

doi = "10.1016/j.memsci.2007.02.046",

language = "English (US)",

volume = "295",

pages = "121--129",

journal = "Journal of Membrane Science",

issn = "0376-7388",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Characterization of partially sulfonated polyoxadiazoles and oxadiazole-triazole copolymers

AU - Gomes, Dominique

AU - Roeder, Jerusa

AU - Ponce, Mariela L.

AU - Nunes, Suzana P.

PY - 2007/5/31

Y1 - 2007/5/31

N2 - 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, 1H 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 °C) and high proton conductivity values (order of magnitude of 10-2 S cm-1 at 80 °C).

AB - 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, 1H 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 °C) and high proton conductivity values (order of magnitude of 10-2 S cm-1 at 80 °C).

KW - Fuel cell

KW - Polyoxadiazole

KW - Polytriazole

KW - Proton conductivity

KW - Sulfonation

UR - http://www.scopus.com/inward/record.url?scp=34247128173&partnerID=8YFLogxK

U2 - 10.1016/j.memsci.2007.02.046

DO - 10.1016/j.memsci.2007.02.046

M3 - Article

AN - SCOPUS:34247128173

SN - 0376-7388

VL - 295

SP - 121

EP - 129

JO - Journal of Membrane Science

JF - Journal of Membrane Science

IS - 1-2

ER -

Characterization of partially sulfonated polyoxadiazoles and oxadiazole-triazole copolymers

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this