Design and synthesis of Ru(II-bipyridyl-containing conjugated polymers

Pautzsch, Thomas; Blankenburg, Lars; Klemm, Elisabeth

doi:10.1002/pola.10874

Cited by 16 publications

(8 citation statements)

References 21 publications

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“…On the one hand, both cationic and anionic polymers, also known as ionene polymers, have received considerable interest because they are the appropriate polymers for the construction of functional multilayer assemblies by a sequential layer‐by‐layer deposition technique through electrostatic interactions 1–10. On the other hand, the liquid crystallinities, that is, both the thermotropic and lyotropic liquid‐crystalline (LC) properties, of ionene polymers have also received considerable attention in the field of LC polymers 11–26.…”

Section: Introductionmentioning

confidence: 99%

Main‐chain ionene polymers based on trans‐1,2‐bis(4‐pyridyl)ethylene exhibiting both thermotropic liquid‐crystalline and light‐emitting properties

Han

Vantine

Nedeltchev

et al. 2006

J. Polym. Sci. A Polym. Chem.

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Section: Introductionmentioning

confidence: 99%

Main‐chain ionene polymers based on trans‐1,2‐bis(4‐pyridyl)ethylene exhibiting both thermotropic liquid‐crystalline and light‐emitting properties

Han

Vantine

Nedeltchev

et al. 2006

J. Polym. Sci. A Polym. Chem.

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“…4‐ tert ‐Butyltriphenylamine,27–31 4,4′‐dibromotriphenylamine,32 4,4′‐dibromo‐4″‐ tert ‐butyltriphenylamine,32 4‐iodo‐(octyloxy)‐benzene,33, 34 9,10‐diiodoanthracene 1e, 35–37 1‐methoxy‐4‐(2‐ethylhexyl)oxy‐2,5‐diiodobenzene 1a, 33, 38 2,5‐dibromothiophene 1b, 39, 40 2,5‐dibromo‐3‐dodecylthiophene 1c, 41 1‐(trimethylsilylethynyl)‐4‐iodobenzene,42 1,4‐dihexyl‐2,5‐dibromobenzene 1d, 43 4,7‐dibromo‐2,1,3‐benzothiadiazolef44 were synthesized according to literature. The syntheses of the monomers 4,4′‐diethynyltriphenylamine 2c and 4,4′‐diethynyl‐4″‐ tert ‐butyltriphenylamine 2a are described in former publications 31, 45. For syntheses of the monomer 4,4′‐diethynyl‐4′‐(octyloxy)‐triphenylamine 2b and the model compounds 4,4′‐bis(phenyl‐ethynyl)‐triphenylamine 4a , and 2‐methoxy‐5‐(2‐ethylhexyl)oxy‐1,4‐bis(triphenylamine‐4‐yl‐ethynyl)benzene 4b see Supporting information.…”

Section: Methodsmentioning

confidence: 99%

TPA‐PPEs – New alternating donor copolymers for potential application in photovoltaic devices

Blankenburg

Hager

Sell

et al. 2008

J of Applied Polymer Sci

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A series of phenyleneethynylene copolymers with triphenylamine units as hole‐transporting moieties (TPA‐PPEs) were synthesized by the palladium‐catalyzed cross‐coupling polycondensation of diethynyltriphenylamines and selected dihalogen comonomers, for instance substituted benzene, thiophene, benzothiadiazole, or anthracene. Incorporation of the electron‐rich amino group into the PPE backbone does not interrupt the main chain conjugation. Furthermore, it has a decreasing effect on the oxidation potential, thus makes these polymers interesting as hole‐injection/hole‐transporting materials. The chemical structure of the new alternating copolymers was confirmed by 1H and 13C NMR spectroscopy and elemental analysis and gel‐permeation chromatography (GPC; THF, Mn ≈ 15,000–30,000 g/mol) was conducted. Furthermore, their optical properties were investigated by UV/vis spectroscopy. The TPA‐PPEs exhibit absorption maxima at around 400 nm (π‐π*), except anthracene containing copolymer 3f (λmax = 514 nm in THF) and benzothiadiazole containing one 3g (λmax = 503 nm in THF). The TPA copolymers have oxidation potentials about 1.1 V (Ag/AgCl). They are good photoconducting materials (3a: IPhoto = 4 × 10−10 A at 425 nm (400 V), 3g: IPhoto = 1.3 × 10−11 A at λmax = 500 nm (20 V)) and show emission after excitation at around 450 nm (560 nm 3f). Their application in nonoptimized polymer solar cells (bulk heterojunction) led to power conversion efficiencies of around 1–1.8% after illumination with 100 mW/cm2 of AM1.5. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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“…The incorporation of transition metals into substituted PAs6, 14–18 and other conjugated polymers19 has also been studied, because the materials possess unique electrical properties as a result of the redox potential of the metal. In addition to conductors, these metallopolymers have potential applications as catalysts, sensors, molecular assemblies, and light emitting materials 13, 20–24…”

Section: Introductionmentioning

confidence: 99%

Ruthenium‐incorporated, metathesis‐active polyacetylene

Sherwood

Williams

Sponsler

2009

J. Polym. Sci. A Polym. Chem.

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Two olefin metathesis methods have been developed for the preparation of metal‐incorporated polyacetylene (MIPA) with high levels of covalently attached ruthenium complex. Treatment of freshly prepared, porous polyacetylene (PA) formed by polymerization of acetylene by the metathesis catalyst (H2IMes)RuCl2(CHPh)(3‐bromopyridine)2 (G2B) with additional G2B resulted in the incorporation of the ruthenium complex into the solid polymer in levels up to 75% by mass, giving two‐step MIPA (MIPA2). Alternatively, single‐step MIPA (MIPA1) samples with similar levels (up to 79% by mass) of ruthenium incorporation were obtained by polymerization of acetylene with highly concentrated solutions of G2B, and the resulting materials formed fine suspensions in CH2Cl2. A variety of experiments confirmed that both the methods give materials with ruthenium covalently attached to PA chains. Shiny, tough MIPA films were obtained by pressing the black powders obtained by either method. Some MIPA properties were dependent on the amount of metal incorporation, but even samples with high incorporation levels mimicked untreated PA in many respects. MIPA1, but not MIPA2, was made electrically conductive by doping with iodine. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 1061–1072, 2009

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Design and synthesis of Ru(II-bipyridyl-containing conjugated polymers

Cited by 16 publications

References 21 publications

Main‐chain ionene polymers based on trans‐1,2‐bis(4‐pyridyl)ethylene exhibiting both thermotropic liquid‐crystalline and light‐emitting properties

Main‐chain ionene polymers based on trans‐1,2‐bis(4‐pyridyl)ethylene exhibiting both thermotropic liquid‐crystalline and light‐emitting properties

TPA‐PPEs – New alternating donor copolymers for potential application in photovoltaic devices

Ruthenium‐incorporated, metathesis‐active polyacetylene

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