Artículo
Bionanocomposites based on chitosan intercalation in designed swelling high-charged micas
Autor/es | Alba Carranza, María Dolores
Cota Reguero, Agustín Osuna Barroso, Francisco Javier Pavón González, Esperanza ![]() ![]() ![]() ![]() ![]() ![]() ![]() Perdigón Aller, Ana Carmen Raffinn, Florian |
Departamento | Universidad de Sevilla. Departamento de Química Inorgánica |
Fecha de publicación | 2019 |
Fecha de depósito | 2020-05-11 |
Publicado en |
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Resumen | Bionanocomposites based on layered inorganic components, as clays, and polymers of biological
origin, as chitosan, have a major impact in medical and environmental felds, being economical and
environmentally friendly ... Bionanocomposites based on layered inorganic components, as clays, and polymers of biological origin, as chitosan, have a major impact in medical and environmental felds, being economical and environmentally friendly materials. Na-Mn micas (n=2 and 4) with controlled surface charge, high cation exchange capacity and swelling behaviour, are attractive inorganic composite components that exhibit improved adsorption properties compared to other inorganic solids which makes them potentially useful for bionanocomposites. The goal of this research was to explore the potential use of those synthetic brittle micas to form eco-friendly bionanocomposites with chitosan biopolymer. Hence, chitosan-mica bionanocomposites were prepared by ion-exchange reaction between chitosan solution and synthetic high charge mica. X-ray difraction, Fourier transform infrared spectroscopy, thermal analysis, MAS-NMR spectroscopy and zeta-potential have been employed for bionanocomposites characterization. The results showed that the adsorption of chitosan is efective, although a chitosan portion remains in the outer surface being hydrogen-bonded to the tetrahedral sheet of the silicate. |
Agencias financiadoras | Junta de Andalucía FEDER |
Identificador del proyecto | project P12-FQM-567
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Cita | Alba Carranza, M.D., Cota Reguero, A., Osuna Barroso, F.J., Pavón González, E., Perdigon Aller, A.C. y Raffinn, F. (2019). Bionanocomposites based on chitosan intercalation in designed swelling high-charged micas. Scientific Reports, 9 (1, art. 10265), 1-9. https://doi.org/10.1038/s41598-019-46495-z. |
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