초록 |
Novel star-shape imide compounds, containing electron-withdrawing fluorine moieties and electron donating triphenylamine groups, were synthesized via 3-step process. First, 3,6-dibromo-1,2,4,5-tetramethylbenzene (2B4MB) was oxidized to afford 3,6-dibromopyromellitic acid (2B4BA) which was reacted with aniline, 4-trifluoromethylaniline or 3,5-ditrifluoromethylaniline, providing N,N’-bis(phenyl)-3,6-dibromo-N,N’-pyromellitimide (2BPMI), N,N’-bis(4-(trifluoromethyl)phenyl)-3,6-dibromo-N,N’-pyromellitimide (3FPMI) or N,N’-bis(3,5-(ditrifluoromethyl)phenyl)-3,6-dibromo-N,N’-pyromellitimide (6FPMI), respectively. Next, these compounds were subjected to Suzuki coupling reaction with 4-(diphenylamine)phenylborolane (BTPA), resulting in PTPPI, 3FTPPI or 6FTPPI, respectively. The star-shape imide compounds were characterized by NMR, FT-IR and solubility measurements. Finally, optical and electrical properties were also evaluated by fluorescence, UV-vis and cyclovoltametry (CV). |