Light curable polymers - obtd by curtius rearrangement of monomer contg carbonylazide gp in presence of polymer

摘要

The polymers, with light crosslinkable gp. (1) bound to main chain by urethane bridge, are obtd. by Curtius rearrangement of monomers contg. (1) and carbonyl-azide gp. at 60-100 degrees C in the presence of pref. OH-contg. polymers with release of N2. The monomers are pref. azidosulphonyl- and azidocarbonyl substd. benzenes and the polymers cyclorubber or vinyl alcohol unit contg. polymers. The prods. are used as light-curable films on paper, metal, glass or plastics substrates.