PHOTO-CROSSLINKABLE TELOMERS AND PRODUCTION METHOD THEREOF

摘要

Telomers and cotelomers having at least one photo-crosslinkable sequence and their production process. They have the general formula: wherein the taxogen links -(Xi)- belong to the group comprised by hydroxy 2 ethyl acrylate and methacrylate, by acrylic or methacrylic acid, by vinylic or allylic alcohol, the links are issued from the same taxogen Xi esterified by means of a group having in its molecule at least a double photo-crosslinkable bond and wherein 1 < x + y <= 1000, Z being selected in the group -H, -Cl, -Br and wherein R may be a simple or macromolecular radical, leading, in the latter case, to the formation of besequenced cotelomers. The production method comprises a telomerization by a redox or radicalar catalysis followed by a grafting of the photo-crosslinkable group, the first phase of telomerization being doubled in the case of a cotelomer. These products may be applied particularly to the coating of metals.