Synthesis and Properties of Alternating Fluorene-Based Oligomers for Sub-µm Photopatterning

✍ Scribed by Esther Scheler; Eva Betthausen; Peter Strohriegl

• Book ID: 102483144
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 433 KB
• Volume: 211
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.201000165

✦ Synopsis

Abstract

The synthesis of alternating photo‐crosslinkable fluorene co‐oligomers via Suzuki cross coupling is reported. The co‐oligomers were characterized using NMR and GPC, the results showing effective control of molecular weight. The oligomers have low T~g~s of 53–63 °C and are thermally stable up to ≈300 °C. Using TPD as co‐monomer, a blue‐emitting oligomer was obtained, a yellow‐fluorescent material for benzothiadiazole, and a red (film) and yellow‐green (solution) emitting material for bithiophene. The energy levels are very similar to those of randomly linked oligomers. The photo‐crosslinking behavior was studied and under optimized conditions a lateral resolution of 600 nm was obtained.

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