[1] School of Materials Science and Engineering,
[2] and Hyperstructured Organic Materials Research Center,undefined
[3] Seoul National University,undefined
[4] Seoul 151-742,undefined
[5] Korea e-mail: jychang@gong.snu.ac.kr,undefined
[6] Tel.: +82-2-880-7190,undefined
[7] Fax: +82-2-885-1748,undefined
[8] Department of Polymer Science and Engineering,undefined
[9] Inha University,undefined
[10] Inchon 402-751,undefined
[11] Korea,undefined