Synthesis of charge transporting polymer containing TPD units using Friedel–Crafts reaction

Hole transport triphenylamine–spirosilabifluorene alternating copolymer: synthesis and optical, electrochemical and electroluminescent properties

“…Since the luminescence and efficiency for type 2 device is not increased but decreased, the addition of a hole transporting layer seems to be unnecessary [13]. The results, together with the hight-lying HOMO energy level and reversible electrochemical oxidation of P(TPA-SSBF), indicate that P(TPA-SSBF) has the ability of hole injecting and transporting [12,13,18,36].…”

“…The PEDOT layer serves as a conductive electrode with work function of around 5.2 eV. In type 1, P(TPA-SSBF) was used as a hole transporting and emitting layer [12]. It is well known that double-and multi-layer LEDs often show better device performance than single-layer LEDs, because of better charge confinement [18].…”

“…The feasibility of utilizing spin-coating and printing processes for large area display devices and possibilities of various chemical modifications make polymers containing triphenylamine (TPA) units very attractive [12][13][14][15][16][17][18][19][20]. Salbeck et al introduced the concept of linking two arylamine moieties via a spiro carbon center, introducing a 908 angle between them.…”

Anionic Polymerization of 4-Diphenylaminostyrene: Characteristics of the Alkyllithium/N,N,N′,N′-Tetramethylethylenediamine System for Living Anionic Polymerization

“…Among the St derivatives, 4-diphenylaminostyrene (DAS, also known as 4-vinyltriphenylamine) has been considered a favorable monomer for the synthesis of triphenylamine- (TPA-) containing polymers, because excellent charge transport properties are expected for such polymer structures. , To obtain poly(DAS) (PDAS) with a well-defined polymer chain structure, a number of polymerization studies have been carried out using anionic, , radical and living radical ,– methods. However, only high molecular weight polymers ( M n ≥ 10000) were provided by the (living) radical polymerization (PDAS yield = 60−80 wt %; polydispersity index (PDI) = 1.20−4.30), – and quite limited information has been reported concerning the anionic polymerization of DAS (Scheme ).…”

Oxidative Coupling Copolymerization of 4‐Methyltriphenylamine with Arenes

“…[1][2][3][4][5] Polymers containing arene units, such as anthracene, fluorene, and so on, in the backbone constitute an interesting class of light emitting polymers. [6][7][8] A large number of articles on the preparation of these polymers has been reported; however, the insolubility and infusibility, which arise from a strong interchain interaction, have restricted their practical application.…”