1. School of Chemical Engineering; College of Engineering, University of Tehran; P.O. Box 11155-4563 Tehran Iran
2. Leibniz Institute of Polymer Research Dresden; Hohe Str. 6 D-01069 Dresden Germany
3. Department of Polymer Processing; Iran Polymer and Petrochemical Institute (IPPI); P.O. Box 14965-115 Tehran Iran
4. Department of Resin and Additives; Institute for Color Science and Technology; P.O. Box 16765-654 Tehran Iran