| Abstract: | Poly(methylmethacrylate) resins crosslinked with divinyl benzene, ethyleneglycol dimethacrylate and N,N′-methylene-bis-acrylamide were functionalized to generate a photodissociable chromophore, S-benzoyl-o-dithiohydroxamate. These polymeric mixed anhydrides were found to be efficient heterogeneous initiators in the light-induced polymerization of acrylic and vinyl monomers. On UV irradiation, both homopolymers and graft polymers were obtained. Polymerization of MMA was followed at various time intervals and as a function of monomer and initiator concentrations. On varying the initiator concentration, the rate of polymerization passed through a maximum. © 1998 SCI. |
