Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/39358
Título: | Hydrophobic/hydrophilic P(VDF-TrFE)/PHEA polymer blend membranes |
Autor(es): | Tamaño-Machiavello, M. N. Bracke, Benjamin Costa, C. M. Lanceros-Méndez, S. Sabater i Serra, R. Gómez Ribelles, J. L. |
Palavras-chave: | Porous membrane P(VDF-TrFE) PHEA hydrogel Hydrophilic Hydrophobic |
Data: | 2016 |
Editora: | Wiley |
Revista: | Journal of Polymer Science Part B: Polymer Physics |
Citação: | Tamano-Machiavello, M. N., Bracke, B., Costa, C. M., Lanceros-Mendez, S., Sabater i Serra, R., & Gomez Ribelles, J. L. (2016). Hydrophobic/hydrophilic P(VDF-TrFE)/PHEA polymer blend membranes. Journal of Polymer Science Part B-Polymer Physics, 54(6), 672-679. doi: 10.1002/polb.23959 |
Resumo(s): | Polymer blend membranes have been obtained consisting of a hydrophilic and a hydrophobic polymers distributed in co-continuous phases. In order to obtain stable membranes in aqueous environments, the hydrophilic phase is formed by a poly(hydrohyethyl acrylate), PHEA, network while the hydrophobic phase is formed by poly(vinylidene fluoride-co-trifluoroethylene) P(VDF-TrFE). To obtain the composites, in a first stage, P(VDF-TrFE) is blended with poly(ethylene oxyde) (PEO), the latter used as sacrificial porogen. P(VDF-TrFE)/PEO blend membranes were prepared by solvent casting at 70° followed by cooling to room temperature. Then PEO is removed from the membrane by immersion in water obtaining a P(VDF-TrFE) porous membrane. After removing of the PEO polymer, a P(VDF-TrFE) membrane results in which pores are collapsed. Nevertheless the pores reopen when a mixture of hydroxethyl acrylate (HEA) monomer, ethyleneglycol dimethacrylate (as crosslinker) and ethanol (as diluent) is absorbed in the membrane and subsequent polymerization yields hybrid hydrophilic/hydrophobic membranes with controlled porosity. The membranes are thus suitable for lithium-ion battery separator membranes and/or biostable supports for cell culture in biomedical applications. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/39358 |
DOI: | 10.1002/polb.23959 |
ISSN: | 1099-0488 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDF - FCD - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Tamano_II_2015.pdf Acesso restrito! | 672,24 kB | Adobe PDF | Ver/Abrir |