Characterization and Product Properties of Silane-Modified Silica Dispersions

3 Characterization and Product Properties of Silane-Modified Silica Dispersions 

In order to get information on a molecular level if and how silane species are covalently linked to the siUca surface it is necessary to use appropriate spectroscopic techniques. Many of the available techniques for surface analysis are not able to provide information on whether the silane species are covalently linked to the silica surface or if they are physically adsorbed. 

Solid-state Si-NMR (nuclear magnetic resonance) techniques have been used for over 30 years to characterize 

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