1. Polymer Engineering Department, Amirkabir University of Technology, Tehran, Iran
2. Department of Chemical and Materials Engineering, New Mexico State University, Las Cruces, New Mexico 88003-0001
3. Mechanical Engineering Department, University of Kashan, Kashan, Iran
4. Chemical Engineering Department, Faculty of Engineering, University of Kashan, Kashan, Iran
5. Laboratory of Advanced Rheology and Rheometry, Faculty of Engineering, University of Kashan, Kashan, Iran
6. Department of Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019-2115