CHAPTER 9. Polythiophenes

Haynes, D.M.; McCullough, Richard D.

doi:10.1039/9781849739771-00180

Cited by 2 publications

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“…While heavily carbon-based CPs are prevalent, they can have double bonds that are either consecutive or separated by heteroatoms such as silicon or sulfur. Some aromatic or triazole rings may also be coupled into the structure as repeating units . These polymers have already been successfully employed in the development of organic photovoltaics, light-emitting diodes, batteries, electrochromic devices, and sensors due to their unique electronic and electroluminescent properties .…”

Section: Introductionmentioning

confidence: 99%

Visible Light-Induced Synthesis of Conjugated Poly(phenylene butadiynylene) by a Combination of Halide Abstraction and Coupling Reactions

et al. 2023

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This study describes a simple and efficient method for synthesizing conjugated poly(phenylene butadiynylene) (PPB)polymers using photo-induced radical homocoupling. The approach involves irradiating 1,4-bis(bromoethynyl)benzene with visible light in the presence of dimanganese decacarbonyl (Mn2(CO)10), which acts as a radical generator by abstracting halides and promoting subsequent radical coupling reactions. The resulting conjugated PPB exhibited a remarkable red shift, and the optical band gap decreased from −2.76 to −2.27 eV. A similar effect was observed in the electrochemically measured oxidation potential; the highest occupied molecular orbital position regressed from −6.06 to −5.69 eV. Transmission electron microscopy and atomic force microscopy measurements revealed the self-organization of the polymers to planar 2D nanorods, and the 2D structures of the polymers were further supported by density functional theory calculations. Moreover, the surface area of the polymer was found to be 53.61 and 30.69 m2/g according to Brunauer–Emmett–Teller and Barrett–Joyner–Halenda methods, respectively.

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Section: Introductionmentioning

confidence: 99%

Visible Light-Induced Synthesis of Conjugated Poly(phenylene butadiynylene) by a Combination of Halide Abstraction and Coupling Reactions

et al. 2023

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Conjugated polymers developed from alkynes

Liu

Lam

Tang

2015

National Science Review

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The numerous merits of conjugated polymers (CPs) have encouraged scientists to develop a variety of synthetic routes to CPs with diverse structures and functionalities. Among the large scope of substrates, alkyne plays an important role in constructing polymers with conjugated backbones. In addition to some well-developed reactions including Glaser–Hay and Sonogashira coupling, azide/thiol-yne click reaction and cyclotrimerization, some novel alkyne-based reactions have also been explored such as oxidative polycoupling, decarbonylative polycoupling and multicomponent tandem polymerizations. This review focuses on the recent progress on the synthetic methodology of CPs in the last five years using monomers with two or more triple bonds and some of their high-technological applications. Selected examples of materials properties of these CPs are given in this review, such as fluorescence response to chemical or physical stimuli, magnetism, white light emission, cell imaging and bioprobing. Finally, a short perspective is raised in regard to the outlook of the preparation methodologies, functionalities as well as potential applications of CPs in the future.

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CHAPTER 9. Polythiophenes

Cited by 2 publications

References 0 publications

Visible Light-Induced Synthesis of Conjugated Poly(phenylene butadiynylene) by a Combination of Halide Abstraction and Coupling Reactions

Visible Light-Induced Synthesis of Conjugated Poly(phenylene butadiynylene) by a Combination of Halide Abstraction and Coupling Reactions

Conjugated polymers developed from alkynes

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