[1] Technion Israel Inst Technol, Dept Chem Engn, IL-32000 Haifa, Israel
[2] Technion Israel Inst Technol, Dept Mat Engn, IL-32000 Haifa, Israel
[3] Leibniz Inst Polymer Res Dresden, D-01069 Dresden, Germany
[4] Univ Perugia, Mat Sci & Technol Ctr, Terni, Italy
[5] Univ Perugia, Mat & Engn Ctr, I-05100 Terni, Italy