1. Department of Polymer Science and Engineering; Korea National University of Transportation; Chungju; Chungbuk; 380-702; Republic of Korea
2. Department of Chemical and Biological Engineering; Korea National University of Transportation; Chungju; 380-702; Republic of Korea
3. IT Convergence Material R&D Group; Korea Institute of Industrial Technology; Cheonan; 330-825; Republic of Korea
4. Nano Polymer Laboratory; Yonsei University; 50 Yonsei-ro, Seodaemun-gu; Seoul; Republic of Korea
5. Flexible Display Research Center; Korea Electronics Technology Institute; Seongnam-Si; Gyeonggi-do; Republic of Korea