Phosphorylation of Polyacrolein Oximes

Esterification of polyacrolein oximes with phosphorus pentoxide in DMF at 100°C for 4 h gives rise to phosphoric acid esters. Solid-phase ³¹P NMR spectroscopy, IR spectroscopy and potentiometric titration were used to establish that the phosphorylation proceeds by the hydroxy group of N-hydroxypiperidine rings incorporated into the polymeric macromolecule. Formation of acrylonitrile links is not observed. The influence of water on the phosphorylation of polyacrolein oximes is studied.__________Translated from Zhurnal Obshchei Khimii, Vol. 75, No. 2, 2005, pp. 264–267.Original Russian Text Copyright © 2005 by Antonik, Khabibulina.