SURFACE MODIFICATION OF SUBSTRATES

摘要

The present invention is directed to a practically universal surface modification process and the materials thereby obtained. In general, the process includes initial epoxy modification of a surface (14) of a substrate (12) by attachment of an epoxy-containing polymer to the surface at random multiple points (10). Following attachment of the polymer, still-existing epoxy groups on the polymer may then cross-link (32) the polymer to form a unified anchoring layer (30) on the surface. The individual polymer can also form trains (20), tails (22) and loops (24) that can extend the height of the polymer above the substrate surface providing a depth to the anchoring layer (30). Other epoxy groups (16) in the anchoring layer, not utilized in forming the layer, may be used to graft surface modifying materials to the surface. For instance, macromolecules, biomolecules, polymers, and polymerization initiators may be grafted to the surface via the anchoring layer.