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1995
Conference Paper
Title
Special polysiloxanes on glass surfaces
Abstract
Organically modified siloxanes or silicates are hybrid materials which intrinsically combine properties and functions of inorganic materials, for instance glass, with those of organic polymers. The basic building blocks that make up this class of materials are mainly silicon compounds with a variety of substituents. An inorganic -Si-O-Si-backbone is first constructed by means of hydrolysis and condensation, e.g. of alkoxy groups (sol-gel processing). The inorganic content of the resulting materal can be considerably increased by the addition of alkoxy compounds of aluminium, titanium or zirconium, prior to hydrolysis. Residual non-reactive organic moieties which are stable against hydrolysis such as amino, alkyl or phenyl groups may act as network modifiers, whereas reactive epoxy, vinyl or methacryl groups permit additional organic crosslinking by well known polymerization reactions. The chemical character of these hybrid hydroxy or alkoxy groups, which may react with surface silanol
Language
German
Keyword(s)