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metadata.dc.type: | Artigo de Periódico |
Title: | Ionic properties of an organic–inorganic sol–gel hybrid based on polydimethylsiloxane and tetraethoxysilane doped with sodium dodecyl sulfate |
Other Titles: | Journal of Applied Polymer Science |
Authors: | Pinto, Raffael Costa de Figueiredo Paschoal, Carlos William de Araujo Paraguassu, Waldeci Castro Jr., Manoel Carvalho Boaventura Filho, Jaime Soares José, Nadia Mamede |
metadata.dc.creator: | Pinto, Raffael Costa de Figueiredo Paschoal, Carlos William de Araujo Paraguassu, Waldeci Castro Jr., Manoel Carvalho Boaventura Filho, Jaime Soares José, Nadia Mamede |
Abstract: | In this work, we performed impedance spectroscopy measurements of organically modified silicate membranes based on polydimethylsiloxane (PDMS) and tetraethoxysilane (TEOS) with the inclusion of sodium dodecyl sulfate (SDS) at five different concentrations. The results indicated that the conduction in a pure PDMS/TEOS hybrid membrane mainly resulted from a hopping mechanism. The conduction of membranes modified with the addition of SDS increased for SDS concentrations up to 20% and decreased for higher concentrations. This effect was explained on the basis of the porosity of the membranes due to SDS. |
Keywords: | Charge transport Composites Interpenetrating network (IPN) |
metadata.dc.rights: | Acesso Aberto |
URI: | http://repositorio.ufba.br/ri/handle/ri/13791 |
Issue Date: | 2010 |
Appears in Collections: | Artigo Publicado em Periódico (FIS) |
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