1. Department of Chemistry, The Open University, Walton Hall, Milton Keynes MK7 6AA, United Kingdom, The Polymer Centre, Department of Chemistry, University of Sheffield, Sheffield S3 7HF, United Kingdom, Polymers and Complex Fluids Group, School of Physics & Astronomy, University of Leeds, Leeds LS2 9JT, United Kingdom, Synchrotron Soleil, L'Orme des Merisiers, B.P. 48 Saint Aubin, 91192 Gif sur Yvette Cedex, France, and Netherlands Organization for Scientific Research (NWO), DUBBLE-CRG/ESRF, B.P. 220, F...