A new solution to an old problem: synthesis of unsubstituted poly(para-phenylene)
Unsubstituted and structurally well-defined poly(para-phenylene) (PPP) has been long-desired as an organic semiconductor prototype of conjugated polymers. To date, several attempts to synthesize unsubstituted, pristine, high-molecular-weight PPP have failed. Here we solved this synthetic problem by...
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| Hauptverfasser: | , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
9 December 2016
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| In: |
Journal of the American Chemical Society
Year: 2016, Jahrgang: 138, Heft: 50, Pages: 16208-16211 |
| ISSN: | 1520-5126 |
| DOI: | 10.1021/jacs.6b10254 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/jacs.6b10254
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| Verfasserangaben: | Ali Abdulkarim, Felix Hinkel, Daniel Jänsch, Jan Freudenberg, Florian E. Golling, and Klaus Müllen |
| Zusammenfassung: | Unsubstituted and structurally well-defined poly(para-phenylene) (PPP) has been long-desired as an organic semiconductor prototype of conjugated polymers. To date, several attempts to synthesize unsubstituted, pristine, high-molecular-weight PPP have failed. Here we solved this synthetic problem by a versatile precursor route. Suzuki polymerization of kinked disubstituted 1,4-dimethoxycyclohexadienylene monomers yielded a well-soluble, nonaromatic precursor polymer. Its solubility allowed processing by spin-coating into nanometer-thick films. Subsequent additive-free thermal treatment induced aromatization and led to exclusively para-connected, highly fluorescent PPP with a length of about 75 phenylene units. |
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| Beschreibung: | Gesehen am 20.07.2020 |
| Beschreibung: | Online Resource |
| ISSN: | 1520-5126 |
| DOI: | 10.1021/jacs.6b10254 |