publication . Article . 2007

New sol–gel synthesis of a (CaO)0.3(Na2O)0.2(P2O5)0.5 bioresorbable glass and its structural characterisation

Pickup, David M.; Guerry, Paul; Moss, Rob M.; Knowles, Jonathan C.; Smith, Mark E.; Newport, Robert J.;
Open Access
  • Published: 01 Jan 2007 Journal: Journal of Materials Chemistry, volume 17, page 4,777 (issn: 0959-9428, eissn: 1364-5501, Copyright policy)
  • Publisher: Royal Society of Chemistry (RSC)
  • Country: United Kingdom
An improved sol-gel synthesis of (CaO)(0.3)(Na2O)(0.2)(P2O5)(0.5) bioresorbable glass has been developed. The structures of both the dried gel and the stabilised sol-gel glass have been characterised using high-energy XRD, P-31 MAS NMR and FT-IR spectroscopy. The structure of the analogous melt-quench prepared glass has also been studied for comparison. The results show that the dried gel has a structure consisting of mainly Q(0) and Q(1) phosphate units, whereas that of the stabilised sol-gel glass comprises predominantly Q(1) and Q(2) units. Furthermore, it is demonstrated that the structure of the sol-gel glass is similar to that of its melt-quenched counterp...
free text keywords: Fourier transform spectroscopy, Nuclear chemistry, Calcium oxide, chemistry.chemical_compound, chemistry, High energy, Sol-gel, Materials science, Sodium oxide, Glass structure, Spectroscopy, Phosphate, Q1
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