Quantitative Measurements of Adsorbed Aminosilanes on Muscovite Mica Using Diffuse Reflectance Infrared Fourier Transform Spectroscopy

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A method for quantitative analysis of 3-aminopropyltriethoxysilane (γ-APS) and N-(N-vinylbenzy1-2-aminoethyl)-3-aminopropyltrimethoxysilane hydrochloride (cationic vinylbenzyl silane, CVBS) on muscovite mica powder has been developed with the use of diffuse reflectance FT-IR spectroscopy. The adsorption isotherms determined by this method are reported. The results are compared with a previous study of the adsorption of aminosilanes by ESCA, and possible models of the adsorbed layer are discussed.

Keywords: Aminosilanes; Diffuse reflectance; Infrared; Mica; Quantification

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702894203615

Affiliations: Institute for Surface Chemistry, Box 5607, 114 86 Stockholm, Sweden

Publication date: September 1, 1989

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