1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, 130022 Changchun, People's Republic of China
2. BASF SE, Polymer Research, 67056 Ludwigshafen, Germany
3. Basell Polyolefine GmbH, R&D, 65926 Frankfurt, Germany
4. HASYLAB am DESY, Notkestrasse 85, 22607 Hamburg, Germany