Thiophene–phenylene/naphthalene‐based step‐ladder copolymers |
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| Authors: | Torsten W Bünnagel Benjamin S Nehls Frank Galbrecht Kristina Schottler Christof J Kudla Markus Volk João Pina João S Seixas de Melo Hugh D Burrows Ullrich SCherf |
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| Institution: | 1. Bergische Universit?t Wuppertal, Institute for Polymertechnology and Macromolecular Chemistry, D‐42097 Wuppertal, Germany;2. University of Coimbra, Department of Chemistry, 3004‐535 Coimbra, Portugal |
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| Abstract: | 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 |
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| Keywords: | conjugated polymers fluorescence polycondensation synthesis UV– vis X‐ray |
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