초록 |
A new arylamine monomer with photo-crosslinkable styrylpyridinyl moiety of conjugated polyarylamine for OLED hole injection material was synthesized through two synthetic routes, BOC-amine protection/deprotection and nitro group reduction methods. Both synthetic routes yielded practically pure amine product by standard aqueous workup and crystallization in reasonable yield. Their reaction efficiencies were comparatively studied in views of practicality and reaction scale. Also, the key compound of photo-crosslinker, 4-[2-(2-pyridinyl)ethenyl]phenol was reinvestigated, and the reproducible and optimized preparation condition was presented. |