q' are independently integers of 1 to about 20, w is an integer of 1 to about 10, and R can be linear or branched; Rf is a linear or branched, perfluorinated alkylene group having from 1 to about 10 carbon atoms and optionally containing one or more catenary ether oxygen atoms; and Rh is a linear or branched alkyl group having from 1 to about 14 carbon atoms and optionally containing one or more c