Citation:
Vaganova, E. ; Rozenberg, M. ; Dubnikova, F. ; Danovich, D. ; Yitzchaik, S. Acidity of the Methyne Group of poly(4-vinylpyridine) Lead to Side-Chain Protonation in Pyridine. New J.Chem 2015, 39, 5920-5922.
Abstract:
Poly(4-vinylpyridine) swollen in pyridine displays changes in electrical conductivity in response to white light and to low level thermal perturbation; protonation of the side-chain nitrogen is believed to play a role. Here we present spectroscopic evidence that the proton donor is the methyne group CH on the polymer chain.