Dielectric relaxation in PAN/EC/PC (poly-(acrylonitrile)/ethylene carbonate/propylene carbonate) mixtures

Autor:	H. Eliasson, L. Sjögren, B.-E. Mellander
Rok vydání:	1999
Předmět:	Relaxation (NMR) Analytical chemistry Plasticizer Dielectric Condensed Matter Physics Spectral line chemistry.chemical_compound chemistry Inflection point Propylene carbonate Organic chemistry General Materials Science Acrylonitrile Ethylene carbonate
Zdroj:	Journal of Physics: Condensed Matter. 11:10285-10295
ISSN:	1361-648X 0953-8984
DOI:	10.1088/0953-8984/11/50/321
Popis:	Dielectric measurements have been performed on a series of samples consisting of poly-(acrylonitrile) (PAN) mixed with the plasticizers ethylene carbonate (EC) and propylene carbonate (PC) in various proportions. The spectra obtained show characteristic features such as a linear ln() variation, a horizontal inflection point and double minima, which are predicted within the A4-scenario of the mode-coupling theory. We find very good agreement with the theoretical results in the relevant frequency range. The experimental spectra are found to satisfy a scaling behaviour, and the resulting master curves are in good agreement with the theoretical predictions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::30a29e7a5c821937c49049343e9c95ec https://doi.org/10.1088/0953-8984/11/50/321 Zobrazit plný text záznamu