ISSN:
1022-1352
Schlagwort(e):
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Physik
Notizen:
Palladium-catalyzed cross-coupling reactions between 5,5′-dibromo-2,2′-bipyridine and substituted phenyldiacetylenes provide a novel family of rigid backbone conjugated polymers 4a, 4b. The weight-average molecular weight determined by GPC, polystyrene standards, Mw was 23 350 g · mol-1 for 4a and 13 460 g · mol-1 for 4b, with a polydispersity index of 2.7 and 1.9, respectively. The highly luminescent polymers exhibit excellent solubility and can readily be processed into transparent films. The model compounds 5 and 6 show a fluorescence quantum yield close to unity.
Zusätzliches Material:
3 Ill.
Materialart:
Digitale Medien
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