Synthesis and characterization of new 4‐tolyldiphenylamine derivatives for hole transporting polymers

The effect of the supramolecular network of (Z)-3-(4-(diphenylamino)phenyl)-2-(pyridin-2-yl)-acrylonitrile on the fluorescence behavior of a single crystal: experimental and theoretical studies

“…Aromatic amines are among the most important reagents used as nanodevice materials, [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] and they serve to covalently attach various compounds to light-emitting layers. 14,21,22 Furthermore, they have been tested as blue emitters in organic LEDs 23 and as components of electroluminescent bipolar devices.…”

Novel aromatic polymers from benzaldehyde and triphenylamine derivatives: Synthesis, electrochromic, and photochemical properties

“…4‐Methyltriphenylamine (MTPA)32 and 4‐methoxytriphenylamine (MOTPA)13b were synthesized by Ullmann reaction from commercially available diphenylamine with 4‐iodotoluene and 4‐iodoanisole, respectively. Triphenylamine (ACROS), benzaldehyde (ACROS), chlorobenzene (TEDIA), acetic anhydride (TEDIA), N ‐methyl‐2‐pyrrolidinone (NMP) (TEDIA), N,N ‐dimethylacetamide (DMAc) (TEDIA), chloroform (TEDIA), and tetrahydrofuran (THF) (TEDIA) were used without further purification.…”

“…Our strategy in this article is to synthesize high‐yield TPA‐containing monomers by easier procedure, and then react with the commercially available commodity benzaldehyde through an acid catalyzed polymerization. Sato and coworkers32, 33 and Shikatani et al34 reported that reaction of TPA derivatives with various aldehydes provided hole transporting materials, but the electrochromic properties of the obtained polymers were not investigated. Nishikitani et al35 also reported the similar result; however, they introduced alkyl group in N ‐position that might cause not only less conjugation cation radical form but also lower their glass transition temperatures ( T g s) and thermal stability.…”