Synthesis and characterization of alternating fluorene–thiophene copolymers bearing ethylene glycol side-chains

ABSTRACT: New alternating fluorene–thiophene copolymers are introduced bearing polar ethylene glycol-carboxylate functionalities on the thiophene ring to achieve enhanced solubility in polar solvents. Suzuki polycondensation was applied to synthesize a set of three polymers with differing lengths of...

Descripción completa

Detalles Bibliográficos
Autores principales: Ziegler, Elisabeth, Pein, Andreas, Fischereder, Achim, Trimmel, Gregor
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Vienna 2011
Materias:
Original Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4494851/
https://www.ncbi.nlm.nih.gov/pubmed/26166856
http://dx.doi.org/10.1007/s00706-010-0440-z
Descripción
Sumario:ABSTRACT: New alternating fluorene–thiophene copolymers are introduced bearing polar ethylene glycol-carboxylate functionalities on the thiophene ring to achieve enhanced solubility in polar solvents. Suzuki polycondensation was applied to synthesize a set of three polymers with differing lengths of the ethylene glycol side-chains. The polymers are thermally stable up to temperatures of 300 °C. Solutions of the polymers in CHCl(3) show an absorption maximum at approximately 397 nm and a luminescence maximum of 472 nm in solutions with quantum yield of 30%. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels have been determined to be at −5.7 and −2.6 eV, respectively. GRAPHICAL ABSTRACT: [Image: see text]

Ejemplares similares