Photoluminescence quenching of a novel electroconductive poly(Propylene thiophenoimine)-co-poly(ethylenedioxy thiophene) star copolymer
| dc.contributor.author | Yonkeu, Anne Lutgarde Djoumessi | |
| dc.contributor.author | Ndipingwi, Miranda Mengwi | |
| dc.contributor.author | Ikpo, Chinwe Oluchi | |
| dc.date.accessioned | 2021-01-18T07:29:59Z | |
| dc.date.available | 2021-01-18T07:29:59Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | A 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.citation | Yonkeu, 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, 1-16 | en_US |
| dc.identifier.issn | 2073-4360 | |
| dc.identifier.uri | 10.3390/polym12122894 | |
| dc.identifier.uri | http://hdl.handle.net/10566/5654 | |
| dc.language.iso | en | en_US |
| dc.publisher | MDPI | en_US |
| dc.subject | Electron donor | en_US |
| dc.subject | Photoinduced charge transfer | en_US |
| dc.subject | Photoluminescence quenching | en_US |
| dc.subject | Poly(propylene imine) dendrimer | en_US |
| dc.subject | Star copolymer | en_US |
| dc.title | Photoluminescence quenching of a novel electroconductive poly(Propylene thiophenoimine)-co-poly(ethylenedioxy thiophene) star copolymer | en_US |
| dc.type | Article | en_US |