Abstract
A series of copolymers of 3,3′-dialkylbithiophenes and tetrafluorobenzene units are reported along with non-fluorinated controls. AU are characterized by NMR, gel permeation chromatography, differential scanning calorimetry, optical spectroscopy, and wide-angle X-ray diffraction (WAXD). The fluorine substituents enhance backbone planarity, order, and π-stacking in the solid-state as revealed by optical spectroscopy and WAXD. Peak oxidation potential is also increased by 0.55 V relative to a benchmark polymeric semiconductor, poly(3-hexylthiophene). Head-to-head 3-alkylthiophene linkages do not preclude backbone planarity provided the side chains are not too bulky.
Original language | English |
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Pages (from-to) | 8643-8647 |
Number of pages | 5 |
Journal | Macromolecules |
Volume | 41 |
Issue number | 22 |
DOIs | |
State | Published - Nov 25 2008 |
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry