Cationic and anionic environments in LiTFSI-doped di-ureasils with application in solid sate electrochromic devices

FTIR and Raman spectroscopies were used to investigate the cation/polymer, cation/urea bridge, cation/anion and hydrogen bonding interactions in poly(ethylene oxide)/siloxane di-ureasil networks prepared by the sol-gel route and doped with LiTFSI. Materials with compositions 200>n>5 (where n e...

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Detalhes bibliográficos
Autor principal: Nunes, Sílvia (author)
Outros Autores: Zea Bermudez, V. de (author), Ostrovskii, David (author), Carlos, Luís (author), Silva, Maria Manuela (author), Smith, Michael John (author)
Formato: article
Idioma:eng
Publicado em: 2008
Assuntos:
Di-ureasils
Sol-gel
LiTFSI
FTIR
FT-Raman spectroscopy
Science & Technology
Texto completo:http://hdl.handle.net/1822/7842
País:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/7842
Descrição
Resumo:FTIR and Raman spectroscopies were used to investigate the cation/polymer, cation/urea bridge, cation/anion and hydrogen bonding interactions in poly(ethylene oxide)/siloxane di-ureasil networks prepared by the sol-gel route and doped with LiTFSI. Materials with compositions 200>n>5 (where n expresses the molar ratio of OCH2CH2/Li+) were studied.

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