Chemical modification of porous calcium hydroxyapatite surfaces by grafting phenylphosphonic and phenylphosphite acids
| Autor: | A. Saoiabi, L. El Hammari, Michel Meyer, Abdelaziz Laghzizil, Philippe Barboux |
|---|---|
| Přispěvatelé: | Université Mohammed 5 Agdal, Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) ( LCMCP (site Paris VI) ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Collège de France ( CdF ) -Ecole Nationale Supérieure de Chimie de Paris- Chimie ParisTech-PSL ( ENSCP ) -Centre National de la Recherche Scientifique ( CNRS ), Institut de Chimie Moléculaire de l'Université de Bourgogne [Dijon] ( ICMUB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Université Mohammed V de Rabat [Agdal], Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie Moléculaire de l'Université de Bourgogne [Dijon] (ICMUB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Chemistry
Mineralogy chemistry.chemical_element Chemical modification 02 engineering and technology Thermal treatment Calcium 010402 general chemistry 021001 nanoscience & nanotechnology Grafting 01 natural sciences Apatite 0104 chemical sciences [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry Colloid and Surface Chemistry visual_art Specific surface area [ CHIM.THEO ] Chemical Sciences/Theoretical and/or physical chemistry visual_art.visual_art_medium Hydroxyapatites 0210 nano-technology Porosity ComputingMilieux_MISCELLANEOUS Nuclear chemistry |
| Zdroj: | Colloids and Surfaces A: Physicochemical and Engineering Aspects Colloids and Surfaces A: Physicochemical and Engineering Aspects, Elsevier, 2006, 289, pp.84-88. 〈10.1016/j.colsurfa.2006.04.009〉 Colloids and Surfaces A: Physicochemical and Engineering Aspects, Elsevier, 2006, 289, pp.84-88. ⟨10.1016/j.colsurfa.2006.04.009⟩ |
| ISSN: | 0927-7757 |
| DOI: | 10.1016/j.colsurfa.2006.04.009〉 |
| Popis: | It is well known that the incorporation of organic molecules can provide an effective route to modify the surface properties of apatite ceramics. The present study shows that phosphonates can react with calcium ions to control the formation of the hydroxyapatite structures. The grafting of C6H5PO(OH)2 (PPOH) and C6H5PO(OH)H (PPH) was used to increase the specific surface area as well as the porosity of hydroxyapatite materials. The higher specific surface area for HAp treated by PPOH is around 267 m2/g compared to the pure HAp (140 m2/g). The phenyl (C6H5) groups are removed by thermal treatment around 500 °C. After treatment at 800 °C, organoapatites (PP-HAp) are converted to stoiochiometric hydroxyapatites. |
| Databáze: | OpenAIRE |
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