Sulfonation degree effect on ion-conducting SPEEK-titanium oxide membranes properties (2017)
- Authors:
- Autor USP: HUI, WANG SHU - EP
- Unidade: EP
- DOI: 10.1590/0104-1428.07216
- Subjects: SULFONAÇÃO; POLÍMEROS (MATERIAIS)
- Language: Inglês
- Abstract: Polymeric membranes were developed using a SPEEK (sulfonated poly(ether ether ketone)) polymer matrix, containing titanium oxide (TiO2) (incorporated by sol-gel method). SPEEK with different sulfonation degrees (SD): 63% and 50% were used. The influence of sulfonation degree on membrane properties was investigated. The thermal analysis (TGA and DTGA) and X-ray diffraction (XRD) were carried out to characterize the membranes and electrochemical impedance spectroscopy (EIS) was carried out to evaluate the proton conductivity of the membranes. The proton conductivities in water were of 3.25 to 37.08 mS.cm-1. Experimental data of impedance spectroscopy were analyzed with equivalent circuits using the Zview software, and the results showed that, the best fitted was at 80 °C.
- Imprenta:
- Publisher place: São Carlos
- Date published: 2017
- Source:
- Este periódico é de acesso aberto
- Este artigo NÃO é de acesso aberto
-
ABNT
MARRERO, Jacqueline Costa et al. Sulfonation degree effect on ion-conducting SPEEK-titanium oxide membranes properties. Polímeros, v. 27, n. 3, p. 189-194, 2017Tradução . . Disponível em: https://doi.org/10.1590/0104-1428.07216. Acesso em: 02 fev. 2026. -
APA
Marrero, J. C., Gomes, A. de S., Wang, S. H., Dutra Filho, J. C., & Oliveira, V. S. de. (2017). Sulfonation degree effect on ion-conducting SPEEK-titanium oxide membranes properties. Polímeros, 27( 3), 189-194. doi:10.1590/0104-1428.07216 -
NLM
Marrero JC, Gomes A de S, Wang SH, Dutra Filho JC, Oliveira VS de. Sulfonation degree effect on ion-conducting SPEEK-titanium oxide membranes properties [Internet]. Polímeros. 2017 ; 27( 3): 189-194.[citado 2026 fev. 02 ] Available from: https://doi.org/10.1590/0104-1428.07216 -
Vancouver
Marrero JC, Gomes A de S, Wang SH, Dutra Filho JC, Oliveira VS de. Sulfonation degree effect on ion-conducting SPEEK-titanium oxide membranes properties [Internet]. Polímeros. 2017 ; 27( 3): 189-194.[citado 2026 fev. 02 ] Available from: https://doi.org/10.1590/0104-1428.07216 - Influência da morfologia nas propriedades dos materiais poliméricos multifásicos
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Informações sobre o DOI: 10.1590/0104-1428.07216 (Fonte: oaDOI API)
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