Abstract
Abstract The living polymerization of methacrylic esters initiated with aluminium porphyrins was found to be dramatically accelerated upon the addition of organoaluminium or organoboron compounds as a Lewis acidic monomer activator (high-speed living polymerization). Under appropriate conditions, high-molecular-weight poly(methyl methacrylates) (Mn > 500000) having a narrow molecular-weight distribution (Mw/Mn = 1.1—1.2) were synthesized. The key concept of the high-speed living polymerization is the coexistence of nucleophilic growing species and a Lewis acid without a degradative direct reaction.
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