| Autor: |
Z. Anbaoui, N Knouzi, M Berrada, N Lajrhed, M. Vaultier |
| Rok vydání: |
1998 |
| Předmět: |
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| Zdroj: |
Annales de Chimie Science des Mat�riaux. 23:351-354 |
| ISSN: |
0151-9107 |
| DOI: |
10.1016/s0151-9107(98)80090-1 |
| Popis: |
Summary In this paper, we present experimental findings on the synthesis and characterization of novel poly(ether benzimidazole)s (PEBIs). A group of new polybenzimidazoles has been prepared by condensation of activated aromatic dinitro compounds containing preformed benzimidazole units and 1,6-hexandiol in N-methylpyrrolidone (NMP). These polymers were obtained in high to quantitative yields and with varying molecular weights (inherent viscosities from 0.43 to 0.77 dL/g), which in some cases were in the fiber forming range. They show high thermal stability, decompose above 400 °C and have glass transition temperatures in the 240–300 °C range. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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