A dental composite and method of photo-induced polymerisation using novel co-initiator

A dental composite, comprising photo induced polymerization reaction product of:

• i. a plurality of monomers,
• ii. a photo initiator, and
• iii. a co-initiator,
• wherein the co-initiator is selected from the compounds of Formula 1, Formula 2, Formula 3, Formula 4, and Formula 5 wherein in Formula 1 and Formula 3,
• X is selected from O, S, N, Se and
• Te;
• Y is selected from O, S, N, Se and Te;
• R1 is selected from the group comprising of Hydro, alkyl, branched chain alkyl, aryl, t-butyl, methyl, cyano, o-methyl, nitro and also comprises tert-butyloxycarbonyl protected amine (BocHN);
• R2 is selected from group comprising of OMe, Me, CN, Methyl, Cl, F, Br, NO2, OPh, OTs, allylic and the like;
• In Formula 2 and Formula 4,
• X is selected from O, S, N, Se and Te,
• Y is selected from O, S, N, Se and
• Te;
• wherein n=0, 1, 2, 3, 4, 5, 6;
• R1 is selected from the group comprising of Hydro, alkyl, branched chain alkyl, aryl, tert-butyl, methyl, cyano, o-methyl,
• nitro and also comprises tert-butyloxycarbonyl protected amine (BocHN);
• R2 is selected from group comprising of OMe, Me, CN, Methyl, Cl, F, Br, NO2, OPh, OTs, allylic and the like;
• In Formula 5,
• X is selected from O, N,
• S;
• Y is selected from O,
• N, S;
• Ar1 is selected from p-CF3—C6H5,
• naphthyl;
• Ar2 is selected from p-CF3-C6H5, naphthyl;
• R2 is selected from the group comprising of OMe, Me, CN, and Methyl, Cl, F, Br, NO2, OPh, OTs, allylic and the like.