Compositions of matter that are useful in the preparation of plastics and paints. These compositions contain a large number of silanol groups bonded to the silicon atoms that provide water solubility and/or disperseability of such materials in aqueous solutions. In addition, these compositions contain organofunctional groups that are antimicrobial in nature. These compositions, when coupled with plastics and paints, provide antimicrobial properties to such plastics and paints as well as adhesion properties.