1. School of Chemical Engineering, College of Engineering; University of Tehran; P.O. Box: 11155-4563 Tehran Iran
2. Department of Resin and Additives; Institute for Color Science and Technology; P.O. Box: 16765-654 Tehran Iran
3. Department of Polymer Processing; Iran Polymer and Petrochemical Institute; 14965-115 Tehran Iran
4. Leibniz-Institute of Polymer Research Dresden; D-01069 Dresden Germany