Elucidation of the Mechanism and Synthetic Utilization of Termination Reaction of Radical Polymerization Based on Living Radical Polymerization

The termination reaction mechanism of radical polymerization and the control of the reaction for synthetic applications are studied by the reactions of structurally well - de fi ned polymer end radicals prepared by living radical polymerization. The termination mechanism, namely the selectivity of disproportionation and combination of radicals, of representative monomers was determined unambiguously, and the effects of the reaction temperature, the molecular weight, and the solvent viscosity were clari fi ed. In addition, the selective combination termination as a useful inter polymer radical coupling reaction was developed.