Discrete copper(II)-formate complexes as catalytic precursors for photo-induced reversible deactivation polymerization

摘要: Traditional copper-mediated reversible deactivation polymerization techniques (RDRP) employ various components mixed in situ (e.g. ligand, metal salt, additional species etc.) order to achieve good control over the molecular weight distributions. In a previous communication we described discrete copper(II)-formate/Me6-Tren complex catalyse of acrylates. Herein, expand scope this by investigating compatibility with solvents, including acetonitrile (MeCN), dimethylformamide (DMF), methanol (MeOH), isopropanol (IPA), toluene, 2,2,2-trifluoroethanol (TFE) and water as well mixtures thereof. A series both hydrophilic hydrophobic acrylic monomers are reported n tert butyl acrylate (n-BA t-BA), poly ethylene glycol (PEGA), diethylene ethyl ether (DEGEEA), lauryl (LA), octadecyl (ODA), hydroxyethyl (HEA), hydroxyl propyl (HPA) solketal (SA). most cases, narrow distributions were attained (typically 95%). High polymers targeted achieving poly(MA) final dispersity 1.12 within 2 h (Mn ∼ 120 000 g mol−1) NaBr being essential obtain even higher polymers. As Me6-Tren is relatively expensive purchase commercially, an PMDETA was also synthesized, allowing for methacrylates MMA) addition Narrow distributions, high monomer conversion spatiotemporal could be achieved complex, demonstrating that it efficient less alternative well-defined poly(acrylates) poly(methacrylates).