POLYMER MODIFIED SUBSTRATES, THEIR PREPARATION AND USES THEREOF

摘要

Provided are polymer modified substrates which comprise a) a substrate, b) a binding layer covalently attached to the surface of the substrate and covering at least a part of this surface; and c) a polymer brush formed by a plurality of polymer chains, each of which is covalently attached at one of its terminals to the binding layer. Moreover, methods are provided, for the preparation of the polymer modified substrates by polymerizing vinyl group containing monomers, such as vinylphosphonates, on a binding layer provided on a substrate.

主权项

1. A process for the preparation of a polymer-modified substrate, the process comprising the steps of
a) preparing on at least a part of the surface of the substrate a binding layer covalently attached to the substrate and carrying a plurality of vinyl groups substituted by an electron accepting group; b) contacting the binding layer with rare earth metal complexes as catalysts and allowing the rare earth metal complexes to coordinate with the vinyl groups substituted by an electron accepting group of the binding layer; c) contacting the binding layer including the coordinated rare earth metal complex catalysts with vinyl monomers containing a vinyl group substituted with an electron accepting group; and d) carrying out a polymerization of the vinyl monomers mediated by the rare earth metal of the coordinated rare earth metal complex to form polymer chains covalently attached at one of their terminals to the binding layer.