Affiliation: | aCenter for Polymer Studies and Department of Physics, Boston University, Boston, MA 02215, USA bInstitute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic cFakultät für Physik und Geowissenschaften, Universität Leipzig, Linnestrasse 5, D-04103 Leipzig, Germany dArgonne National Laboratory, Argonne, IL 60439, USA |