[1] Karlsruhe Inst Technol, Inst Tech Chem & Polymerchem, D-76131 Karlsruhe, Germany
[2] Inst Biol Grenzflachen, D-76344 Eggenstein Leopoldshafen, Germany
[3] Karlsruhe Inst Technol, D-76344 Eggenstein Leopoldshafen, Germany
[4] Univ Dusseldorf, Lehrstuhl Praparat Polymerchemie, Inst Organ Chem & Makromol Chem, D-40225 Dusseldorf, Germany