The present invention provides novel 4- and 5-substituted 1,2,3-triazole moieties, with at least one remote polymerizable moiety. The novel mixtures of 4- and 5-substituted regioisomers of 1,2,3-triazole moieties can be separated by chromatography to provide the purified 4- and 5-substituted 1,2,3-triazole moieties. The novel mixtures of 4- and 5-substituted regioisomers of 1,2,3-triazole moieties, and the purified 4- and 5-substituted 1,2,3-triazole moieties, with at least one remote polymerizable moiety, can be converted to a wide variety of useful polymers. The novel compounds of the invention can be employed in a wide variety of compositions. E, Q, Z, X, a, and R1-R4, in the structures below, are defined herein.