Quantitative monomolecular coverage of barium glass by the silane coupling agent gamma-methacryloxypropyltrimethoxysilane / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 759-761, 2006.
Artigo
em Chinês
| WPRIM
| ID: wpr-292969
ABSTRACT
<p><b>OBJECTIVE</b>To study the monomolecular coverage of the silane coupling agent gamma-methacryloxypropyltrimethoxysilane (gamma-MPS) on the barium glass filler surface.</p><p><b>METHODS</b>Kubelka-Munk (K-M) function values of the isolated OH-groups on the barium glass filler surface, which were based on the change of gamma-MPS concentrations, were measured using the quantitative analysis of the diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy. When all of the isolated OH-groups on the filler surface disappeared (where the K-M function values was zero), the monomolecular coverage of the gamma-MPS molecules on the filler surface was indicated by the linear regression analysis.</p><p><b>RESULTS</b>The relationship tallied with negative linear correlation between the K-M function values of the isolated OH-groups on the barium glass surface and the concentrations of gamma-MPS. Each gamma-MPS molecule occupied 0.21 nm(2) when the monomolecular coverage was formed on the barium glass surface.</p><p><b>CONCLUSIONS</b>The result of this study indicated the optimal amount of silane coupling agent on silanated barium glass filler during the production of resin composite.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Silanos
/
Química
/
Compostos de Bário
/
Dióxido de Silício
/
Resinas Compostas
/
Materiais Dentários
/
Metacrilatos
Idioma:
Chinês
Revista:
Chinese Journal of Stomatology
Ano de publicação:
2006
Tipo de documento:
Artigo
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