Aluminium‐based ruthenium/diamine catalysts for produce aliphatic polycarbonates from carbon dioxide and oxetanes.

We fabricated the chiral ArDPEN/Ru species within the nanoparticles of the aluminium (Al/ArDPEN/Ru). Electron microscopy photos and the anatomical properties revealed the uniformly dispersed nanoparticles with active single‐site ruthenium/diamine centres on the exterior nanoparticles shell. Al/ArDPEN/Ru showed catalytic properties for the reaction of CO2 with oxetane, to synthesize the corresponding polycarbonate with minimal amount of ether linkages. TMC is prepared by a backbiting method following ring‐opening of oxetane by the anion initiator, subsequent to carbon dioxide insertion into the ruthenium/diamine bond. The preparation of the copolymer is shown to proceed mostly by method of the anionic ring‐opening polymerization of preformed trimethylene carbonate in the presence of an anion in solution. In addition, the catalyst anatomical heterogeneity of Al/ArDPEN/Ru was characterized by various techniques, including XRD, SEM, TGA, TEM, VSM, and FT‐IR. No leaching of ruthenium into the solution was observed. [ABSTRACT FROM AUTHOR]