Study on Synthesis and Application of New Benzophenyl Derivatives

Abstract

AbstractIn this work, two new functionalized monosubstituted and disubstituted benzophenone derivatives have been synthesized through a one‐step nucleophilic substitution treatment using dihydroxybenzophenone and arylsulfonyl chloride as raw materials. All the compounds were characterization by NMR and MS spectroscopy technology and the resulting products exhibited efficient UV light absorption in the range of 220–350 nm. The monosubstituted products can effectively improve the photostability of light‐curable coatings and extend the storage time of coatings, the disubstituted one as photoinitiators possess fantastic photoinitiation effect, and the cured coating is smooth and transparent with good adhesion. The introduction of benzenesulfonyl groups on the skeleton of dihydroxybenzophenone(UV‐0) can enhance the compatibility of the compounds with monomers and active diluents, and also improve the defects of yellowing and small molecule migration of cured products. Among them, the monosubstituted products as UV absorber can effectively improve the photostability of the photocurable coating and extend the storage time of coating. As a photoinitiator, the disubstituted products have good photoinitiation effect, and the cured coating are smooth and transparent, and good adhesion.