Monomers for adhesive polymers, 2. Synthesis and radical polymerisation ofhydrolytically stable acrylic phosphonic acids

Acrylic groups containing phosphonic acids were synthesised by ether format ion of ethyl alpha-chloromethylacrylate with hydroxyalkylphosphonates and s ubsequent hydrolysis to the corresponding phosphonic acid alpha-methyl-subs tituted acrylates. The structure of the synthesised monomers was confirmed by elemental analysis, IR,H-1 NMR,C-13 NMR and P-31 NMR spectroscopy. The m onomers are stable in aqueous ethanol. The radical polymerisation of the mo noacrylates in tetrahydrofuran with 2,2'-azobisisobutyronitrile (AIBN) resu lts in soluble polymers, whereas a phosphonic acid diacrylate results in a cross-linked polymer.