Abstract
Photochemical investigations and sensitivity measurements is sensitized reactions in solution and polymer matrices have been carried out with a number of new thioxanthone derivatives. These esters are efficient sensitizers having absorption maxima ranging from 333 to 416 nm and triplet energies ranging from 230 to 270 kJ mol −1. Use of the thioxanthone esters is especially valid in photopolymer applications, as tested in the [2 + 2]-cycloaddition of homopolymers with pendent dimethylmaleimide groups and in the radical-initiated polymerization of acrylic monomers in the presence of donors.
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