A general route for the N-hydroxysuccinimidyl (NHS) ester functionalization of poly(ferrocenyldimethylsilane)-b-polyvinylsiloxane copolymers, which should be readily transferrable to other vinyl containing polymers, has been developed using a simple two step approach. Facile reaction of the NHS ester functionalized polymers with primary amines enables the incorporation of a range of functionalities previously inaccessible using standard thiol-ene "click" reactions. (C) 2015 Wiley Periodicals, Inc.