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P-phenylenevinylene oligomers

Davis WB, Svec WA, Ratner MA, Wasielewski MR (1998) Molecular wire behaviour in p-phenylenevinylene oligomers. Nature 396 60-63... [Pg.112]

Candeias LP, Wildeman J, Hadziioannou G, Warman JM (2000) Pulse radiolysis—optical absorption studies on the triplet states of p-phenylenevinylene oligomers in solution. J Phys Chem B 104 8366-8371... [Pg.582]

Voltammetric measurements on defined soluble oligomers in the homologous series of the p-phenylenevinylenes and the p-phenylenes have finally ended specu-... [Pg.25]

Polymer showing photochromic properties was also obtained using oligomers with a diarylethene moiety obtained starting from a benzothio-phene unit, and p-phenylenevinylene (02MM8684). [Pg.227]

H. Cho, E. Kim, Highly fluorescent and photochromic diarylethene oligomer bridged by p-phenylenevinylene. Macromolecules 35, 8684-8687 (2002)... [Pg.354]

Figure 7.1 Structural formulas and repeat units of a few n -conjugated polymers discussed in this chapter. First row polyacetylene (PA), poly(p-phenylene) (PPP), poly(p-phenylenevinylene) (PPV), polythiophene (PTh) and poly(thienylvinylene) (PThV). Second row the two valence tautomeric forms (A = aromatic and Q = quinonoid) of polyisothianaphthene (PITS), thienoacene ladder polymer (C2Sfad), thiohelicene (C2SHel) and thiaheterohelicene (THHel). The subscript x is used for polymers and n for oligomers... Figure 7.1 Structural formulas and repeat units of a few n -conjugated polymers discussed in this chapter. First row polyacetylene (PA), poly(p-phenylene) (PPP), poly(p-phenylenevinylene) (PPV), polythiophene (PTh) and poly(thienylvinylene) (PThV). Second row the two valence tautomeric forms (A = aromatic and Q = quinonoid) of polyisothianaphthene (PITS), thienoacene ladder polymer (C2Sfad), thiohelicene (C2SHel) and thiaheterohelicene (THHel). The subscript x is used for polymers and n for oligomers...
The synthesis of tetraarylsilanes via Wurtz cross-coupling of bromoarenes and SiCU is a short and efficient route to tetraarylsilanes. Four conjugated units like biphenyl or naphthalene can be attached to the central silicon atom in high yield, but in the case of donor-substituted stUbenoid oligomers, this method gave only poor results [12]. For the preparation of tetrahedral silanes with phenylenevinylene chromophores, the convergent step was not performed on the central silicon atom but on a tetra-p-tolylsilane (lb) functionalized with four phosphonic esters. The advantage of this approach is the additional extension of the n-system in the final step. [Pg.535]

Thorn-Csanyi, E., and P. Kraxner. 1997. All trans-oligomers of dialkyl-1,4-phenylenevinylenes— Metathesis preparation and characterization. Macromol Chem Phys 198 3827. [Pg.117]

METATHESIS POLYCONDENSATION OF SUBSTITUTED p-DIVINYL-BENZENES A WAY TO EASILY PROCESSABLE /i-PHENYLENEVINYLENE (PV) OLIGOMERS WITH VALUABLE PROPERTIES... [Pg.295]

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See also in sourсe #XX -- [ Pg.279 ]



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