Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/164
Título: | Cooperative and local relaxations in complex systems : polymers and crystals |
Autor(es): | Lanceros-Méndez, S. Mano, J. F. Mendes, J. A. |
Palavras-chave: | Relaxation Complex systems Entropy Ferroelectrics |
Data: | 2002 |
Editora: | Taylor and Francis |
Revista: | Ferroelectrics |
Citação: | “Ferroelectrics”. ISSN 0015-0193. 270 (2002) 1457-1462. |
Resumo(s): | A method for investigating the nature of thermally activated relaxations in terms of their cooperative character is tested both in low molecular weight crystals and polymers. This approach is based on the analysis of the activation entropy. In the betaine arsenate/phosphate (BABP) mixed systems we will study the effect of pressure and concentration, whereas in the rubidium ammonium dihydrogen arsenate (RADA) mixed crystal system the effect of concentration and deuteration in the relaxation processes will be studied. Several relaxations have been also studied in polymeric systems, trying to cover representative processes such as the slow g-relaxation in polymers, the i-relaxation in liquid crystalline polymers and the crystalline f-relaxation of semicrystalline polymer (fc). |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/164 |
DOI: | 10.1080/00150190211237 |
ISSN: | 0015-0193 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDF - FCD - Artigos/Papers (with refereeing) IPC - Artigos em revistas científicas internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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35.pdf Acesso restrito! | 240,72 kB | Adobe PDF | Ver/Abrir |