Rapid silylation of a glass surface: choice of reagent and effect of experimental parameters on hydrophobicity

Deyhimi, F. and Coles, J. A. (1982) Rapid silylation of a glass surface: choice of reagent and effect of experimental parameters on hydrophobicity. Helvetica Chimica Acta, 65(6), pp. 1752-1759. (doi: 10.1002/hlca.19820650610)

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Publisher's URL: http://dx.doi.org/10.1002/hlca.19820650610

Abstract

The silylation of the surface of sodium borosilicate glass was investigated under conditions that might be applied to the fabrication of ion-selective microelectrodes of the liquid membrane type such as are used in physiology, Silylation was carried out for 15 min at different temperatures and with six different silanes. The hydrophobicity was measured and found to be greatest with reaction temperatures of 200–350°, the effectiveness of the different silylating agents being in the (increasing) order: trimethylchlorosilane, tributylchlorosilane, (dimethylamino)trimethylsilane, hexamethyldisilazane, dimethyldichlorosilane, bis(dimethylamino)dimethylsilane. The results give evidence of a catalytic effect of basic amine groups and show that the reactivity of the surface of freshly drawn glass is increased by acid leaching.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Coles, Dr Jonathan
Authors: Deyhimi, F., and Coles, J. A.
College/School:College of Medical Veterinary and Life Sciences > Institute of Infection Immunity and Inflammation
Journal Name:Helvetica Chimica Acta
Publisher:Wiley
ISSN:0018-019X
ISSN (Online):1522-2675

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