1. Hyperstructured Organic Materials Research Center (HOMRC), and Department of Fiber and Polymer Science, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, Seoul 151-744, Korea, and Hyperstructured Organic Materials Research Center (HOMRC), and School of Chemical Engineering, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, Seoul 151-744, Korea