Synthèse de compoisés photoréticulables, 4. Estérification de l'acide acrylique sur les télomères de l'acrylate d'hydroxy‐2 éthyle

Several telomers were prepared by redox catalysis from 2‐hydroxyethyl acrylate (1) and telogens such as carbon tetrachloride, methyl trichloroacetate, 1, 1, 1‐trichlorotrifluoroethane, and 2,4,4,4‐tetrachloro‐2‐methylbutyric acid (2d), as well as block‐cotelomers from 1 and a telomer 4 prepared from chlorotrifluoroethylene and carbon tetrachloride. Polyols (3a–d and 5) with two to twenty primary hydroxyl groups were obtained. They were esterified with acrylic acid, to obtain new photosensitive compositions. (6a–d).