The synthesis of a new regioregular conjugated polymer. Poly(2-bromo-5-dodecyloxy-1,4-phenylenevinylene)

Electroluminescent Conjugated Polymers—Seeing Polymers in a New Light

“…[157] High molar masses required rigorous purification of the monomers and optimization of the polymerization conditions. We have found that PPV derivatives with bromo (47) [158] or trifluoromethyl (48) substituents [159,160] can be readily obtained by a bromo-precursor route (see Scheme 5) or by Horner ± Wittig polycondensation. [159] Polymer 48 in particular shows higher electron affinities than PPV.…”

Metallocene-containing conjugated polymers

“…Their polymerization (in particular electrochemical) of such monomers results generally in an irregular distribution of head or tail substitutions. The preparation of regioregular oligomers or polymers requires special synthetic procedures [129][130][131].…”

Stability of electroluminescent conjugated with fluoro groups in vinylene units

“…It was shown by Bredas et al that introduction of electron-withdrawing groups onto the arylene rings or the vinyl groups of PPV lowers the HOMO and LUMO energies of the polymer, thereby permitting the use of a higher work function metal in the LED device. 8 Numerous derivatives of PPV have been reported with electronwithdrawing substituents such as halide, [9][10][11][12][13] cyano, 14 trifluoromethyl, 15 or methylsulfonyl-phenyl 16 on the arylene rings. Other examples with electron withdrawing groups on vinylene group of conjugated polymers have also been reported.…”