polymerization of methyl methacrylate using late transition metal catalyst of [(1,4-phenylenebis(azaneylylidene)) bis(1-benzylinolin-2-one)] cocl2

Transition metal catalysts at the end of the periodic table have attracted a lot of attention for catalytic polymerizations in recent years, because in addition to the catalytic polymerization of non-polar olefins, they have been studied for polymerization of polar monomers such as methyl methacrylate (mma), as well. in this project, a catalyst of [(1,4-phenylenebis(azaneylylidene)) bis(1-benzylinolin-2-one)] cocl2, (a dinuclear cobalt (ii) catalyst (nccl)) was synthesized based on phenoxy-imine ligand with 1,4-phenylenediamine bridge, a rigid bridge, for polymerization of mma. the synthesis reactions were followed with tlc studies. structures of both ligand and catalyst are studied using ftir technique. also, a synthesised modified methyl aluminoxan (mmao) is used as a co-catalyst for the polymerization. the dinuclear cobalt (ii) catalyst was suitable for catalytic polymerization which could be due to the presence of second metal center that give a sufficient activity for the polymerization of mma. the optimom molar ratio of [al]/[co] for this catalyst is 1000:1. this reaction was investigated at ambient temperature (29±1°c) and the highest activity was 2.582 (g pmma/mmol co. h).