Academic Journal
Relaxation behavior in model compounds of poly(aryl-ether-ketone-ketone) as revealed by dielectric spectroscopy
| العنوان: | Relaxation behavior in model compounds of poly(aryl-ether-ketone-ketone) as revealed by dielectric spectroscopy |
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| المؤلفون: | Ezquerra, Tiberio A., Zolotukhin, Mikhail G., Privalko, V. P., Baltá Calleja, Francisco José, Nequlqueo, G., García, C, Campa, José G. de la, de Abajo, J. |
| المساهمون: | Dirección General de Investigación Científica y Técnica, DGICT (España), Japan Society for the Promotion of Science, Ministerio de Educación y Cultura (España) |
| بيانات النشر: | American Institute of Physics |
| سنة النشر: | 1999 |
| المجموعة: | Digital.CSIC (Consejo Superior de Investigaciones Científicas / Spanish National Research Council) |
| الوصف: | 7 pags., 7 figs., 2 tabs. ; Dielectric spectroscopy was used to analyze the relaxation behavior of an ether-ketone oligomer series. Results showed the relaxation behavior of the ether-ketone oligomer series, considered to be the model compounds of poly(ether-ketone-ketone), is different to that displayed by poly(aryl-ether-ketone-ketone) (PEKK) (50/50). It is asserted that this is because of the different chain length inter- and intramolecular correlations of the two types of compounds. In terms of cooperativity, the ether-ketone oligomers showed an almost similar relaxation behavior regardless of glass transition temperature (Tg). The PEKK showed a stronger cooperativity than the oligomers. ; The authors are indebted to the DGICYT Grant No. PB94-0049, Spain, and to NEDO’s International Joint Research Program, Japan for generous support of this investigation. V.P.P. thanks the Ministerio de Educacion y Cultura (Spain) for the tenure of a sabbatical fellowship. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| تدمد: | 0021-9606 |
| Relation: | Postprint; http://dx.doi.org/10.1063/1.478886; Sí; Journal of Chemical Physics 110: 10134-10140 (1999); http://hdl.handle.net/10261/225597; http://dx.doi.org/10.13039/501100008737; http://dx.doi.org/10.13039/501100001691 |
| DOI: | 10.1063/1.478886 |
| DOI: | 10.13039/501100008737 |
| DOI: | 10.13039/501100001691 |
| الاتاحة: | http://hdl.handle.net/10261/225597 https://doi.org/10.1063/1.478886 https://doi.org/10.13039/501100008737 https://doi.org/10.13039/501100001691 |
| Rights: | open |
| رقم الانضمام: | edsbas.9AC35286 |
| قاعدة البيانات: | BASE |
| تدمد: | 00219606 |
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| DOI: | 10.1063/1.478886 |