Synthesis and phase-separation behavior of α,ω-difunctionalized diblock copolymers (pages 926–937)
Saija Werner, Doris Pospiech, Dieter Jehnichen, Kathrin Eckstein, Hartmut Komber, Peter Friedel, Andreas Janke, Franziskus Näther, Uta Reuter, Brigitte Voit, Rosa Taurino and Massimo Messori
Article first published online: 17 DEC 2010 | DOI: 10.1002/pola.24505
A series of poly(pentyl methacrylate-b-methyl methacrylate) block copolymers with allyl groups at different positions was prepared to generate perpendicular (standing) morphologies in thin films on silicon substrates via specific interactions. Living anionic polymerization with functional initiators and/or allyl bromide termination followed by subsequent conversion of allyl into OH-groups via hydroboration is described. The morphology is weakly influenced by OH-groups (alteration of d-spacing L0). Introduction of OH-groups together with small df/L0 ratio proved as necessary condition for formation of standing lamellae morphologies in thin films. OH-terminated BCP acted as template for generation of silica nanoparticles in thin hybrid films.