Mapping and tuning the fluorescence of perfluorinated polyanilines synthesized through liquid-liquid interfaces
A series of light-emitting perfluorinated polyanilines were synthesized by the oxidative polymerization of 3-perfluorooctyl aniline through a variety of aqueous/organic interfaces. According to the interfacial tension between the two solvents (the organic being chloroform, dichloromethane, perfluori...
| Main Authors: | , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
ACS Publications
2016
|
| _version_ | 1797061315686039552 |
|---|---|
| author | Dallas, P Rašović, I Porfyrakis, K |
| author_facet | Dallas, P Rašović, I Porfyrakis, K |
| author_sort | Dallas, P |
| collection | OXFORD |
| description | A series of light-emitting perfluorinated polyanilines were synthesized by the oxidative polymerization of 3-perfluorooctyl aniline through a variety of aqueous/organic interfaces. According to the interfacial tension between the two solvents (the organic being chloroform, dichloromethane, perfluorinated ethers, toluene or o-dichlorobenzene, we obtain distinctive classes of materials based on the crystal packing, protonation and oxidation state of the polymeric chains. We distinguish between soluble fractions with a distinctive, strong and red-shifted photoluminescence pattern and an insoluble precipitate which can be subsequently solubilized in a mixture of acetone and toluene. The emission maximum for the insoluble fraction is located in the ultraviolet or blue region with a small Stokes shift; maxima for the soluble counterparts are in the green to yellow region. The soluble derivatives demonstrate a significantly smaller band gap compared to the monomer and large Stokes shifts up to 163 nm; the emission maxi-mum for the most red-shifted emission was located at λem = 548 nm. Their redox activity towards silver nanoparticles, their sensor reactivity with organic acid and bases, and the subsequent changes in the optical properties were demonstrated and the structure of the materials was evaluated with NMR, X-Ray Diffraction and FTIR/Raman spectroscopy. |
| first_indexed | 2024-03-06T20:29:21Z |
| format | Journal article |
| id | oxford-uuid:30888000-18cc-4ad3-a717-0809aa46573b |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:29:21Z |
| publishDate | 2016 |
| publisher | ACS Publications |
| record_format | dspace |
| spelling | oxford-uuid:30888000-18cc-4ad3-a717-0809aa46573b2022-03-26T13:01:55ZMapping and tuning the fluorescence of perfluorinated polyanilines synthesized through liquid-liquid interfacesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:30888000-18cc-4ad3-a717-0809aa46573bEnglishSymplectic Elements at OxfordACS Publications2016Dallas, PRašović, IPorfyrakis, KA series of light-emitting perfluorinated polyanilines were synthesized by the oxidative polymerization of 3-perfluorooctyl aniline through a variety of aqueous/organic interfaces. According to the interfacial tension between the two solvents (the organic being chloroform, dichloromethane, perfluorinated ethers, toluene or o-dichlorobenzene, we obtain distinctive classes of materials based on the crystal packing, protonation and oxidation state of the polymeric chains. We distinguish between soluble fractions with a distinctive, strong and red-shifted photoluminescence pattern and an insoluble precipitate which can be subsequently solubilized in a mixture of acetone and toluene. The emission maximum for the insoluble fraction is located in the ultraviolet or blue region with a small Stokes shift; maxima for the soluble counterparts are in the green to yellow region. The soluble derivatives demonstrate a significantly smaller band gap compared to the monomer and large Stokes shifts up to 163 nm; the emission maxi-mum for the most red-shifted emission was located at λem = 548 nm. Their redox activity towards silver nanoparticles, their sensor reactivity with organic acid and bases, and the subsequent changes in the optical properties were demonstrated and the structure of the materials was evaluated with NMR, X-Ray Diffraction and FTIR/Raman spectroscopy. |
| spellingShingle | Dallas, P Rašović, I Porfyrakis, K Mapping and tuning the fluorescence of perfluorinated polyanilines synthesized through liquid-liquid interfaces |
| title | Mapping and tuning the fluorescence of perfluorinated polyanilines synthesized through liquid-liquid interfaces |
| title_full | Mapping and tuning the fluorescence of perfluorinated polyanilines synthesized through liquid-liquid interfaces |
| title_fullStr | Mapping and tuning the fluorescence of perfluorinated polyanilines synthesized through liquid-liquid interfaces |
| title_full_unstemmed | Mapping and tuning the fluorescence of perfluorinated polyanilines synthesized through liquid-liquid interfaces |
| title_short | Mapping and tuning the fluorescence of perfluorinated polyanilines synthesized through liquid-liquid interfaces |
| title_sort | mapping and tuning the fluorescence of perfluorinated polyanilines synthesized through liquid liquid interfaces |
| work_keys_str_mv | AT dallasp mappingandtuningthefluorescenceofperfluorinatedpolyanilinessynthesizedthroughliquidliquidinterfaces AT rasovici mappingandtuningthefluorescenceofperfluorinatedpolyanilinessynthesizedthroughliquidliquidinterfaces AT porfyrakisk mappingandtuningthefluorescenceofperfluorinatedpolyanilinessynthesizedthroughliquidliquidinterfaces |