Waterborne Photoinitiator 4 - (2 - Hydroxyethoxy) Methyl Benzophenone Synthesis Study

Waer-soluble UV-cured technology was a green technology of environment. Wththe enhancing of environmed protection consciousness, in receni yea p the greenenvironmental protechon Product -- Waer-soluble UV-cured coating had beendeveloped vigorously, and the research and development of photoinitiatOrs had becomethe hot subect. The novel Waer-soluble photothetiator 4-(2-hydroxydsxy methyl)benzoPhenone was synthesized in thes paPer.The intermediate 4-Methyl benzoPhone was synthesized from benzoyl chloride andtoluene by Frield-Crall reaction with catalyst. The process conditions were tested andthe optium process conditions were retested. The resultS indicated that the yield was78% and the purity of the product uP to 99%. lt provided the reliable technical data forthe industrial middle test.High purity intermediate 4-Bromomethyl benzophenone was preparated bybromination of 4-methyl benzophenone. The sodium ethylene glycol was preparated bythe reaction of ethylene glycol with sodiuxn methanol.The new comPound 4-(2-hydroxyethoxy methy1) benzophenone was syhthesizedby the reaction of 4-Bromomethyl benzophenone with sodium ethy1ene glycol. Theyield was 78%, and the purity of the new product was 95%. We analysized the GC-MS,IR, NMR of the new product and defined its smictUIe.We aPp1icated the new watersoluble photoinitiators in the UV-cured coating. WecomPared the properties of photoinitiators such as benzophenone (BP), 1l73 and Ciba2959. h was demonstrated that the UV-cured rate of the new product was slower thanBP and faster than 1l73 and Ciba 2959, and the odour as good as Ciba 2959, andobviously better than l 173 and BPThe created dot of the paPer was that we firstly synthesized the new comPound 4-(2-hydroxyethoxy methyl) benzophenone that was not reported in the reference anddefined its smictgre. Since it had excellellt aPplication and low cost of development, itcan be aPplicated and developed widely. It was very imPortan that we developed newwaer soluble photondtiators which we processed our own knowledge property...