1. Iran Polymer and Petrochemical Institute; P.O. Box: 14965-115 Tehran Iran
2. Leibniz-Institute of Polymer Research; Dresden D-01067 Germany
3. School of Chemical Engineering; College of Engineering, University of Tehran; P.O. Box 11155-4563 Tehran Iran
4. Hi-Tech Research Group; Petrochemical Research and Technology Company (NPC-rt), National Petrochemical Company (NPC); P.O. Box 14358-84711 Tehran Iran