Modification of surfaces by covalent attachment of polymer micelles

Polymer micelles composed of polystyrene-block-poly(methacrylic acid) have been chemically attached to amino-modified SiO2 surfaces by carbodiimide co upling. The density of coverage is very high (ca. 3 x 10(10) micelles/cm(2) ) and fairly uniform. The diameter of the micelles is ca. 50 nm and the dis tribution of micelle sizes is essentially undisturbed by this coupling reac tion. These modified surfaces might be of interest in surface modification because of the very high density of reactive groups that are associated wit h each micelle.