Poly -ethynylenes

Grignard chemistry was used as an alternative to hydroboration reaction by the Chujo team in its search for new n-type conjugated polymers for utilization in polymer energy storage systems. By this route, the syntheses of 7r-conjugated poly(p-phenylene-boranes) (15)35 (Fig. 12) and poly(ethynylene-phenylene-ethynylene-borane)s were reported.36... [Pg.28]

Poly(ethynylene-p-phenylene-ethynylene-borane)s were also prepared by polycondensations of bifunctional lithium acetylides and aryldimethoxyborane, as shown in scheme 35.61 The polymerization between dilithium 2,5-didodecyloxybenzene-1,4-diethynilide and tripyldimethoxyborane gave the corresponding polymer in 67%... [Pg.158]

Poly(ethynylene-2,5-thiophenediylethynylnes)— Processable, Reactive Polymers That Thermally Cross-Link... [Pg.189]

J. Cremer, P. Bauerle, M. M. Wienk, R. A. J. Janssen, High open-circuit voltage poly(ethynylene-bithienylene) fuUerene solar cells, Chem. Mater., 18, 5832-5834 (2006). [Pg.690]

Poly(l,3,4-oxadia2ole-2,5-diyl-vinylene) and poly(l,3,4-oxadia2ole-2,5-diyl-ethynylene) were synthesi2ed by polycondensation of fumaramide or acetylene-dicarboxamide with hydra2ine sulfate in PPA to study the effect of the two repeating units on polymer electronic and thermal properties (55). [Pg.534]

Optically active polymers, 473, 479-480 synthesis of, 509 Optically active poly(phenylene-ethynylene), synthesis of,... [Pg.590]

An unusual synthetic approach to PF copolymers was demonstrated by Bunz and coworkers [370], who prepared poly(fluorene ethynylene) 281a-e by metathesis polymerization reaction (Scheme 2.44) [370], The aggregation of polymers 281 in concentrated solutions and in solid state is manifested in slight (up to 10-20 nm) red shift of the absorbance and emission peaks, although solutions and films emit pure blue light. [Pg.158]

The EL of poly(o-phenylene ethynylene) 522 was reported by Onoda and coworkers [637], As expected, the optical band gap of 522 (3.1 eV) is larger than that of para-connected polymer 516, making the former a blue-purple-emitting material (APL = 400). Interestingly,... [Pg.225]

D.A.M. Egbe, S. Sell, C. Ulbricht, E. Birckner, and U.-W. Grummt, Mixed alkyl- and alkoxy-substituted poly[(phenylene ethynylene)-a/t-(phenylene vinylene)] hybrid polymers synthesis and photophysical properties, Macromol. Chem. Phys., 205 2105-2115, 2004. [Pg.269]

N.G. Pschirer and U.H.F. Bunz, Poly(fluorenylene ethynylene)s by alkyne metathesis optical properties and aggregation behavior, Macromolecules, 33 3961-3963, 2000. [Pg.277]

C. Schmitz, P. Posch, M. Thelekkat, H.-W. Schmidt, A. Montali, K. Feldman, P. Smith, and C. Weder, Polymeric light-emitting diodes based on poly(p-phenylene ethynylene), poly(triphenyldia-mine), and spiroquinoxaline, Adv. Fund. Mater., 11 41 46, 2001. [Pg.289]

C. Tan, M.R. Pinto, and K.S. Schanze, Photophysics, aggregation and amplified quenching of a water-soluble poly(phenylene ethynylene), Chem. Commun. 446-447, 2002. [Pg.289]

K. Yoshino, K. Tada, and M. Onoda, Optical properties of poly(3,4-dialky 1-1,6-phenylene ethynylene), Jpn. J. Appl. Phys., 33 L1785-L1788, 1994. [Pg.289]

Another approach to CPL is the synthesis of conjugated polymers with intrinsic chiro-optical properties. A variety of polymers with CPPL have been synthesized so far. Most of them are based upon well-known conjugated polymers such as poly(thiophene)s [4,111], polyphenylene vinylene)s [123], poly(thienylene vinylene)s [124], ladder polymers [125], PPPs [126], polyphenylene ethynylene)s, [127] and poly(fluorenes) [128]. All of them have been modified with chiral side-chains, which induce the chiro-optical properties. [Pg.472]

Zheng J, Swager TM (2005) Poly(arylene ethynylene)s in chemosensing and biosensing. Adv Polym Sci 177 151-179... [Pg.383]

DiCesare N, Pinto MR, Schanze KS, Lakowicz JR (2002) Saccharide detection based on the amplified fluorescence quenching of a water-soluble poly(phenylene ethynylene) by a boronic acid functionalized benzyl viologen derivative. Langmuir 18 7785-7787... [Pg.387]

Pinto MR, Rristal BM, Schanze KS (2003) A water-soluble poly(phenylene ethynylene) with pendant phosphonate groups. Synthesis, photophysics, and layer-by-layer self-assembled films. Langmuir 19 6523-6533... [Pg.387]

Zheng J, Swager TM (2004) Biotinylated poly(p-phenylene ethynylene) unexpected energy transfer results in the detection of biological analytes. Chem Commun 2798-2799... [Pg.388]

Poly(acrylene Ethynylenes) -From Synthesis to Application... [Pg.247]

Poly(phenylene-ethynylene) Poly(phenylene-vinylene [PPE] [PPV]... [Pg.204]

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