Abstract
Two new cyano-substituted copolymers containing biphenylenevinylene and bithienylenevinylene moieties (DCN-PPV and DCN-PTV) were synthesized by a stille condensation reaction with Pd(PPh3)4 as catalyst. Their structures were confirmed by 1H NMR, IR spectroscopy, and elemental analysis. The thermal, optical, and electrochemical properties of the polymers were investigated. The results show that the polymers possess high thermal decomposition temperature and reversible n-doping/dedoping processes. In addition, DCN-PTV has higher electron affinity with a low LUMO energy level of −3.84 eV and a relatively broader absorption band covering 300–780 nm, indicating that DCN-PTV could be a potential n-type conjugated polymer in optoelectronic devices.
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Acknowledgements
This work was supported by National Natural science Foundation of China (Nos. 50803074 and 50633050), the Opening Fund of State Key Laboratory of Powder Metallurgy, and Start-up fund of Central South University.
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Zou, Y., Liu, B., Li, Y. et al. New cyano-substituted copolymers containing biphenylenevinylene and bithienylenevinylene units: synthesis, optical, and electrochemical properties. J Mater Sci 44, 4174–4180 (2009). https://doi.org/10.1007/s10853-009-3622-5
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DOI: https://doi.org/10.1007/s10853-009-3622-5