POLYMERIZATION OF METHYL-METHACRYLATE USING THE ACRIDONE-CHLORINE COMBINATION AS THE PHOTOINITIATOR

The photopolymerization of methyl methacrylate (MMA) in visible light was kinetically studied at 40 degree C using the acridone-chlorine (acridone-Cl//2) combination as the photoinitiator. The polymerization was found to proceed via a free-radical mechanism, and the radical generation process was considered to follow an initial complexation reaction between monomer (MMA) and each initiator component (acridone and Cl//2). Kinetic data indicated a lower order dependence of R//P on initiator concentration (initiator exponent less than 0. 5), and the monomer exponent varied from about 1. 00 to 1. 25, depending on the nature of the solvents used.