[1] Univ Calif Santa Barbara, Dept Chem, Inst Polymers & Organ Solids, Santa Barbara, CA 93106 USA
[2] Univ Calif Santa Barbara, Dept Mat, Inst Polymers & Organ Solids, Santa Barbara, CA 93106 USA
[3] Univ Munster, Inst Phys Chem, D-48149 Munster, Germany