Dipole-Switchable poly(para-phenyleneethynylene)s: ferroelectric conjugated polymers
Dipolar 2,3-difluorobenzene units are introduced into the backbone of a poly(para-phenyleneethynylene) (PPE) to generate a ferroelectric conjugated polymer. The structural features of the partially fluorinated PPE allow for the generation of a remanent polarization in the solid state; the difluorina...
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| Main Authors: | , , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
07 November 2018
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| In: |
Angewandte Chemie. International edition
Year: 2018, Volume: 57, Issue: 52, Pages: 17019-17022 |
| ISSN: | 1521-3773 |
| DOI: | 10.1002/anie.201808827 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1002/anie.201808827 Verlag: https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201808827 
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| Author Notes: | Soh Kushida, Emanuel Smarsly, N. Maximilian Bojanowski, Irene Wacker, Rasmus R. Schröder, Osamu Oki, Yohei Yamamoto, Christian Melzer, and Uwe H. F. Bunz |
| Summary: | Dipolar 2,3-difluorobenzene units are introduced into the backbone of a poly(para-phenyleneethynylene) (PPE) to generate a ferroelectric conjugated polymer. The structural features of the partially fluorinated PPE allow for the generation of a remanent polarization in the solid state; the difluorinated benzene rings behave as molecular rotors at high temperature, while at room temperature, stacking of such rings clamps down the ring orientation. The molecular dipoles can still be oriented by moderate external electrical fields at room temperature, and this PPE is then ferroelectric. The concept should be transferable to other poly(aryleneethynylene)s, and novel conjugated ferroelectric conjugated polymers will be accessible using this concept. |
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| Item Description: | Gesehen am 07.11.2019 |
| Physical Description: | Online Resource |
| ISSN: | 1521-3773 |
| DOI: | 10.1002/anie.201808827 |