1. Hi-Tech Research Group; Petrochemical Research and Technology Company (NPC-rt); National Petrochemical Company (NPC); P.O. Box 14358-84711 Tehran Iran
2. Iran Polymer and Petrochemical Institute; P.O. Box 14965-115 Tehran Iran
3. Leibniz-Institute of Polymer Research; Dresden D-01067 Germany
4. School of Chemical Engineering; College of Engineering; University of Tehran; P.O. Box 11155-4563 Tehran Iran
5. Department of Resin and Additives; Institute for Color Science and Technology; P.O. Box 16765-654 Tehran Iran
6. Center of Molecular and Macromolecular Studies of Polish Academy of Sciences; Sienkiewicza 112 Lodz 90-363 Poland