Photoluminescence quenching of a novel electroconductive poly(Propylene thiophenoimine)-co-poly(ethylenedioxy thiophene) star copolymer

dc.contributor.authorYonkeu, Anne Lutgarde Djoumessi
dc.contributor.authorNdipingwi, Miranda Mengwi
dc.contributor.authorIkpo, Chinwe Oluchi
dc.date.accessioned2021-01-18T07:29:59Z
dc.date.available2021-01-18T07:29:59Z
dc.date.issued2020
dc.description.abstractA generation 1 poly(propylene thiophenoimine)-co-poly(ethylenedioxy thiophene) (G1PPT-co-PEDOT) star copolymer, which exhibits a strong optical absorption over a broad range in the ultraviolet–visible (UV-Vis) region and with good electro/conductive properties, was chemically prepared for the first time. Synthesis of the star copolymer, G1PPT-co-PEDOT was confirmed by spectroscopic studies. Indeed, the disappearance of the very high intensity bands, C–H bending at α-position (687 cm−1), and C=N stretching (1620 cm−1) in the Fourier transform infrared spectroscopy (FTIR) of G1PPT-co-PEDOT, which were initially present in the spectrum of the thiolated starting material, G1PPT, confirmed copolymerization. Furthermore, a large bathochromic shift in the onset wavelength of the UV-Vis absorbance spectra from 367 nm in G1PPT to 674 nm in G1PPT-co-PEDOT further attests of successful copolymerization. The electrochemical analysis of G1PPT-co-PEDOT achieved a highest occupied molecular orbital (HOMO) energy level value of 5.3 eV, which is reminiscent of the value for an ideal electron-donor material. Photoluminescence quenching of up to 82% was observed in solution blends of the G1PPT-co-PEDOT star copolymer and N,N′-diisopropyl naphthalene diimide (NDI).en_US
dc.identifier.citationYonkeu, A. L.D. et L. (2020). Photoluminescence quenching of a novel electroconductive poly(Propylene thiophenoimine)-co-poly(ethylenedioxy thiophene) star copolymer. Polymers ,12(12),2894, 1-16en_US
dc.identifier.issn2073-4360
dc.identifier.uri10.3390/polym12122894
dc.identifier.urihttp://hdl.handle.net/10566/5654
dc.language.isoenen_US
dc.publisherMDPIen_US
dc.subjectElectron donoren_US
dc.subjectPhotoinduced charge transferen_US
dc.subjectPhotoluminescence quenchingen_US
dc.subjectPoly(propylene imine) dendrimeren_US
dc.subjectStar copolymeren_US
dc.titlePhotoluminescence quenching of a novel electroconductive poly(Propylene thiophenoimine)-co-poly(ethylenedioxy thiophene) star copolymeren_US
dc.typeArticleen_US

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