NMR spectroscopy of dental materials. II. The role of tartaric acid in glass-ionomer cements.
NMR spectroscopy of dental materials. II. The role of tartaric acid in glass-ionomer cements.
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牙科材料的核磁共振波谱。
DOI：
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发表时间：
1982
期刊：
影响因子：
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通讯作者：
A. D. Wilson
中科院分区：
文献类型：
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作者：
H. J. Prosser;C. Richards;A. D. Wilson
在玻璃离子水门汀中加入D(+)酒石酸以控制固化性能。流态水泥浆体的~(13)C核磁共振谱表明，酒石酸比聚酸更容易与玻璃反应，从而抑制水泥的过早凝胶化。当水泥凝固时，当酒石酸完全络合时，pH值从约1.25上升到约3。当多酸发生反应时，pH值进一步上升到约5。
D(+) tartaric acid is incorporated into glass–ionomer cements to control the setting properties. 13C NMR spectroscopy of the fluid cement pastes have shown that tartaric acid reacts more readily than the polyacid with the glass, and hence suppresses the premature gelation of the cement. As the cements set, the pH rises from ca. 1.25 to ca. 3 when tartaric acid is fully complexed. As the polyacid reacts the pH rises further to ca. 5.