Paramagnetism in Fibre-Forming Poly(Phenylenebenzimidazole Terephthalamides)
The change in the content of paramagnetic centers in poly(phenylenebenzimidazole terephthalamide) fibres was studied as a function of the heat treatment temperature. It is shown that the PMC content increases slightly in the heat-treated fibres in the 100-200°C temperature region, and the PMC conten...
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Published in | Fibre chemistry Vol. 35; no. 4; pp. 287 - 289 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
New York
Springer Nature B.V
01.07.2003
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Subjects | |
Online Access | Get full text |
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Summary: | The change in the content of paramagnetic centers in poly(phenylenebenzimidazole terephthalamide) fibres was studied as a function of the heat treatment temperature. It is shown that the PMC content increases slightly in the heat-treated fibres in the 100-200°C temperature region, and the PMC content then decreases at 200-350°C. At temperatures above 360°C, the number of PMC in the heated fibres increases. It is hypothesized that the change in the content of PMC under 350°C is due to the character of the hydrogen bonds in the system. Above 360°C, thermal degradation of the polymer is the basic cause of the increase in the PMC content in the heated fibres.[PUBLICATION ABSTRACT] |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0015-0541 1573-8493 |
DOI: | 10.1023/B:FICH.0000003481.51701.68 |