The Effect of Sulfonation Level and Molecular Weight on the Tensile Properties of Polyoxadiazoles
| Autor: | Loos, M.R., Gomes, D. |
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| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Loos, M.R.; Gomes, D.: The Effect of Sulfonation Level and Molecular Weight on the Tensile Properties of Polyoxadiazoles. In: High Performance Polymers. Vol. 21 (2009) 6, 697-708. (DOI: 10.1177/0954008308097458) |
| ISSN: | 0954-0083 |
| Popis: | The tensile properties of sulfonated polyoxadiazoles were studied as a function of molecular weight and sulfonation level. All sulfonated polyoxadiazoles synthesized through a polycondensation reaction of the hydrazine sulphate salt and a dicarboxylic acid in poly(phosphoric acid) exhibit rigid-ductile behavior with high Young’s modulus (3–4 GPa) and with larger elongations at break (up to 120%). Sulfonated polyoxadiazoles with maximum reproducible tensile strength (190 6.9 MPa) could be synthesized in the frame of time of 4–5 h. |
| Databáze: | OpenAIRE |
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