1. Advanced Materials Division Korea Research Institute of Chemical Technology (KRICT) Daejeon 34114 (Republic of Korea
2. Department of Polymer Science and Engineering Chungnam National University Daejeon 34134 (Republic of Korea
3. Department of Mechanical and Aerospace Engineering University of California Irvine California 92617 United States
4. Department of Advanced Materials Engineering Chung-Ang University Anseong 17546 (Republic of Korea