| 초록 |
Diaminotriphenylamines with electron-donating side groups, such as N,N-bis-(4-amino-phenyl)-N,N-diphenyl-biphenyl-4,4-diamine (DTPA), 4-(triphenyl phosphine oxidyl)-diaminotriphenylamine (TPPOTPA) and 4-(9-(4-cabarzoyl)phenyl)-diaminotriphenylamine (CPTPA) were prepared and utilized to prepare polyimides with electron withdrawing dianhydrides, such as perylene-3,4,9,10-tetracarboxylic-3,4,9,10-dianhydride (PTCDA) and 2,2'-bis-(3,4-dicarboxyphenyl) hexafluoropropane dianhydride (6FDA). The polyimides were synthesized via two-step process; preparation of poly(amic-acid), followed by solution imidization and characterized by FT-IR, NMR, GPC, DSC, TGA and intrinsic viscosity measurement. In addition, optical and electrical properties were also evaluated by UV-vis, fluorescence spectroscopy and CV. |
