Design of Nanoscale Polymeric Materials With Transition Metal Catalysis

摘要

The ARO grant provided partial support to the research efforts in PI's laboratory on development of highly efficient catalytic syntheses of polymeric materials having complex topologies and functionalities from simple commercial olefinic monomers. In the past three years, we have made significant progress in both developing new polymeric materials and designing new catalysts. Specifically, the following accomplishments were achieved in this laboratory: (1) successfully demonstrated a new strategy of one-pot synthesis of hyperbranched polymers via direct free radical polymerization of commercial divinyl monomers by using a cobalt chain transfer catalyst; (2) developed a highly efficient one-pot synthesis of amphiphilic dendritic molecular nanocarriers that can be used for drug delivery and scaffold for multivalent ligands; (3) developed new NAP based and bisazaferrocene ligands for late transition metal polymerization catalysts; and (4) developed a novel family of cyclophane-based late transition metal complexes that are highly active and stable catalysts for olefin polymerization.