1. University of Minnesota; Department of Chemistry; 207 Pleasant St SE Minneapolis MN 55455-0431 USA
2. Institut für Technische Chemie und Polymerchemie Karlsruhe Institute of Technology (KIT); Preparative Macromolecular Chemistry; Engesserstraße 18 76128 Karlsruhe Germany
3. Queensland University of Technology (QUT), School of Chemistry; Physics and Mechanical Engineering; 2 George Street, QLD 4000 Brisbane Australia