Synthesis, structural characterization and MMA polymerization studies of dimeric 5-coordinate copper(II), cadmium(II), and monomeric 4-coordinate zinc(II) complexes supported by N-methyl-N-((pyridine-2-yl)methyl)benzeneamine

Stereoselective polymerization of methyl methacrylate and rac-lactide mediated by iminomethylpyridine based Cu(ii) complexes

“…In comparison with our previously reported Cu(II) initiator bearing N-methyl-N-((pyridin-2-yl)methyl)benzeneamine, the current system was inferior in terms of activities and stereoselectivities but furnished PMMA with high T g and comparable molecular weights. 72 2-Iminomethylpyridine-and 2iminomethylquinoline-based Zn(II) and Pd(II) complexes accomplished syndio-enriched PMMA polymerization with slightly higher activities, which can be attributed to better electrophilicities of Zn(II) and Pd(II) complexes. 31,33 Recently studied N,N-di(2-picolyl)cyclohexylamine 73 based Pd, Cu, Zn, and Cd complexes for MMA polymerization exhibited lower activities with slightly better syndiotacticities compared to our currently studied catalysts.…”

Well-Controlled Emulsion Polymerization of Methyl Methacrylate Using (Hg,Cd)-Diphenylcarbazone Catalysts: An attempt to Create Hg-free, Nontoxic, γ-Radiation and thermal Stable Films

“…Organometallic compounds that comprise of IIB metals are amusing because they own interesting coordination forms and structural features which come from d 10 conformation [9]. Several Cd and Zn complexes have been investigated in the eld of MMA polymerization [10][11][12][13][14][15][16]. Previously the effectiveness of alkyl-and aryl-Zn and Cd compounds in polymerization of MMA was investigated [10].…”

“…Previously the effectiveness of alkyl-and aryl-Zn and Cd compounds in polymerization of MMA was investigated [10]. Recently, Cd and Zn complexes containing ancillary ligands, pyridyl-imines and N-substituted 2-iminoalkylpyridines have been applied for MMA polymerization [11][12][13][14][15][16]. N,N-di(2-picolyl) cyclohexylamine based Zn (II), and Cd(II) complexes were found to be active catalysts for the MMA polymerization to produce syndiotactic PMMA [11].…”

“…Nayab and his coworkers have also been investigated the performance of Cd(II) and Zn (II) complexes with bispyridylamine, iminopyridine and 2-iminoalkylpyridines derivatives in MMA polymerization [12][13][14][15]. Moreover, they have been synthesized Cd (II) and Zn(II) containing 4-bromo-N-(2-pyridinylmethylene) benzenamine and N-methyl-N-((pyridine-2-yl)methyl) benzeneamine ligands [15,16]. It was clear from polymerization data that Zn(II) complexes resulted in higher activity at 60°C compared to the Cd(II) cognate under same experimental conditions [16].…”

“…Moreover, they have been synthesized Cd (II) and Zn(II) containing 4-bromo-N-(2-pyridinylmethylene) benzenamine and N-methyl-N-((pyridine-2-yl)methyl) benzeneamine ligands [15,16]. It was clear from polymerization data that Zn(II) complexes resulted in higher activity at 60°C compared to the Cd(II) cognate under same experimental conditions [16]. However, wider polydispersity indexes of produced PMMA ranged from 2.33 to 2.58 were observed.…”