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https://hdl.handle.net/1822/24804
Título: | Vibrational analysis of d-PCL(530)/siloxane based hybrids doped with two lithium salts |
Autor(es): | Ferreira, C. B. Fernandes, M. Rodrigues, L. C. Silva, Maria Manuela Smith, Michael John Bermudez, V. de Zea |
Palavras-chave: | FTIR Li+ conductors |
Data: | Mai-2013 |
Editora: | Springer Verlag |
Revista: | Ionics |
Resumo(s): | The present study has been focused on environmentally friendly sol-gel derived electrolytes based on a di-urethane cross-linked d-PCL(530)/siloxane network (where d represents di, PCL identifies the poly(ε–caprolactone) biopolymer and 530 is the average molecular weight in g.mol-1) doped with a wide range of concentration of lithium perchlorate (LiClO4) and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). Fourier Transform Infrared and Raman (FT-IR and FT-Raman, respectively) spectroscopies have been applied to evaluate the extent of ionic association. Characteristic bands of the PCL(530) segments, of the urethane cross-links and of the anions have been examined to gain insight into the cation/biopolymer, cation/anion and cation/cross-link interactions. In both electrolyte systems “free” ions and contact ions have been identified. The addition of salt modifies the hydrogen-bonded array of the host matrix, causing the destruction/formation of the urethane/urethane aggregates. |
Tipo: | Artigo |
Descrição: | Published online: 22 May 2013 |
URI: | https://hdl.handle.net/1822/24804 |
DOI: | 10.1007/s11581-013-0917-y |
ISSN: | 0947-7047 1862-0760 |
Versão da editora: | The original publication is available at www.springerlink.com |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Ionics2013.pdf | principal document with figures | 622,7 kB | Adobe PDF | Ver/Abrir |