Document Type : Original research
1 Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran
2 Engineering Department, Catalyst Group, Iran Polymer and Petrochemical Institute, Tehran, Iran.
3 Department of Polymer Engineering, Faculty of Engineering, Qom University of Technology, Qom, Iran.
4 4Institute of Physical Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany