L. Gan, Y. Wang, Y. Xu
Aug 1, 2001
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0
Influential Citations
12
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Journal
Macromolecules
Abstract
1,4-Di-α-bromomethyl-2,3,5,6-tetrafluorobenzene (1) was prepared from the bromination of 2,3,5,6-tetrafluoro-p-xylene. The product was carefully purified and analyzed by GC/MS, HPLC, FTIR, and 1 H NMR. The structure of 1 was unequivocally confirmed by the X-ray diffraction method. The melting point of 126 °C for 1 was vastly different from the previously reported value of 68-70 °C. Poly(2,3,5,6-tetrafluorophenylenevinylene) (PTFPV) homopolymer was successfully prepared via the bromine precursor route (BPR). The polymer showed excellent photoluminescence with emission maxima at shorter wavelengths of 485 and 515 nm. The single-layer device of ITO/PTFPV/A configuration emitted green light at low turn-on voltage of about 4.2 V. The results demonstrated that PTFPV prepared via BPR was a good emitting material for the LEDs in the green-blue region.