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Título

Synthesis of nanosized carbonated apatite by a modified Pechini method: hydroxyapatite nucleation from a polymeric matrix

Autor Vargas-Becerril, N.; Téllez-Jurado, Lucía; Reyes-Gasga, J.; Alvarez-Perez, M. A.; Rodríguez-Lorenzo, Luis M.
Palabras clave Polyesterification
Hydroxyapatite
Particle size
Pechini method
Fecha de publicación 2014
EditorSpringer
Citación Journal of Sol-Gel Science and Technology 72: 571-580 (2014)
ResumenPechini method is a materials synthesis method based on the preparation of a polymeric matrix. The advantage of this method is the ability to obtain materials with different particle sizes depending on the synthesis condition with a homogeneous distribution. In this work, carbonated hydroxyapatite (c-OHAp) nanoparticles were obtained by a modified Pechini method. To obtain the polymeric precursor of the c-OHAp, the polymeric matrix was prepared through a polyesterification reaction between citric acid and ethylene-glycol. Adding calcium hydroxide and ortophosphoric acid in aqueous solutions, raising the temperature up to 140 C/2 h and keeping constant the pH at 8. The polymeric matrix was calcinated at different ranges of temperature from 200 to 600 C in order to obtain the c-OHAp powder. The results show the presence of c-OHAp a as unique phase. The thermal analysis indicates that the c-OHAp phase was obtained at 600 C. The particle size of the obtained material was\50 nm
URI http://hdl.handle.net/10261/115642
DOI10.1007/s10971-014-3478-2
Identificadoresdoi: 10.1007/s10971-014-3478-2
issn: 0928-0707
e-issn: 1573-4846
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