[1] Univ Durham, Dept Chem, Interdisciplinary Res Ctr Polymer Sci & Technol, Durham DH1 3LE, England
[2] DSM Res Campus Geleen, Performance Mat Chem & Technol Lab 094 2 201, NL-6167 RD Geleen, Netherlands
[3] Radboud Univ Nijmegen, Organ Chem Inst Mol & Mat, NL-6525 ED Nijmegen, Netherlands
[4] INRA, UMR GDPP, IBVM, F-33833 Villenave Dornon, France
[5] Tech Univ Munich, Lehrstuhl Makromol Stoffe, Dept Chem, D-85747 Garching, Germany