1. Department of Mechanical Engineering, Koc University, Rumelifeneri Yolu 34450 Istanbul, Turkey
2. Department of Chemistry, Koc University, Rumelifeneri Yolu 34450 Istanbul, Turkey
3. Department of Chemical and Biological Engineering, Koc University, Rumelifeneri Yolu 34450 Istanbul, Turkey
4. Institute of Polymer Engineering, University of Akron, Akron, Ohio 44325-0301