1. Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
2. Department of Polymer Science, University of Akron, Akron, OH, 44325-3909, USA.
3. European Synchrotron Radiation Facility, F-38043 Grenoble, France.
4. Université de Haute Alsace, Laboratoire de Physique et Mécanique Textiles, F-68093 Mulhouse Cedex, France.
5. Scanning Probe Microscopy (SPM) Labs, Tempe, AZ 85283, USA.
6. Institut de Sciences des Matériaux de Mulhouse-IS2M, CNRS UMR 7361, F-68057 Mulhouse, France.
7. Lomonosov Moscow State University, Faculty of Fundamental Physical and Chemical Engineering, Leninskie Gory 1/51, 119991 Moscow, Russian Federation.