Thiophene-phenylene/naphthalene-based step-ladder copolymers

• Autor(es): Bünnagel, Torsten W. ; Nehls, Benjamin S. ; Galbrecht, Frank ; Schottler, Kristina ; Kudla, Christof J. ; Volk, Markus ; Pina, João ; Melo, João S. Seixas de ; Burrows, Hugh D. ; SCherf, Ullrich
• Data: 2008
• Identificador Persistente: http://hdl.handle.net/10316/8228
• Origem: Estudo Geral - Universidade de Coimbra
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

A series of step-ladder copolymers based on thiophene-phenylene-thiophene SL1-SL3 and thiophene-naphthylene-thiophene SL4 repeat units with varying lengths of the oligothiophene segment has been designed and synthesized via a microwave-assisted Stille-type cross-coupling reaction followed by a polymer-analogous cyclization reaction. The optical properties of the step-ladder copolymers have been investigated in detail, in particular at low temperature and in the solid-state. © 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 7342-7353, 2008 http://dx.doi.org/10.1002/pola.23039