Monomers for adhesive polymers, 2 Synthesis and radical polymerisation of hydrolytically stable acrylic phosphonic acids

摘要

Acrylic groups containing phosphonic acids were synthesised by ether formation of ethyl #alpha#-chloromethylacrylate with hydroxyalkylphosphonates and subsequent hydrolysis to the corresponding phosphonic acid #alpha#-methyl-substituted acrylates. The structure of the synthesised monomers was confirmed by elemental analysis, IR, ~1H NMR, ~(13)C NMR and ~(31)P NMR spectroscopy. The monomers are stable in aqueous ethanol. The radical polymerisation of the monoacrylats in tetrahydrofuran with 2,2'-azobisisobutyronitrile (AIBN) results in soluble polymers, whereas a phosphonic acid diacrylate results in a cross-linked polymer.