New sol–gel synthesis of a (CaO)0.3(Na2O)0.2(P2O5)0.5 bioresorbable glass and its structural characterisation
作者： David M. Pickup , Paul Guerry , Robert M. Moss , Jonathan C. Knowles , Mark E. Smith
DOI: 10.1039/B709955J
关键词: Spectroscopy 、 Fourier transform spectroscopy 、 High energy 、 Chemistry 、 Sol-gel 、 Sodium oxide 、 Calcium oxide 、 Phosphate 、 Glass structure 、 Nuclear chemistry
摘要: An improved sol-gel synthesis of (CaO)(0.3)(Na2O)(0.2)(P2O5)(0.5) bioresorbable glass has been developed. The structures both the dried gel and stabilised have characterised using high-energy XRD, P-31 MAS NMR FT-IR spectroscopy. structure analogous melt-quench prepared also studied for comparison. results show that a consisting mainly Q(0) Q(1) phosphate units, whereas comprises predominantly Q(2) units. Furthermore, it is demonstrated similar to its melt-quenched counterpart except presence hydroxyl groups which terminate chains, reducing connectivity network.
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