Spiro-bridged ladder-type poly(p-phenylene)s: towards structurally perfect light-emitting materials |
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| Authors: | Wu Yonggang Zhang Jianyuan Fei Zhuping Bo Zhishan |
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| Institution: | Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, CAS, Beijing 100080, China. |
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| Abstract: | Structurally perfect spiro-bridged ladder-type poly(p-phenylene)s, which show blue fluorescence in the photoluminescence (PL) and electroluminescence (EL) emission spectra, are prepared by Suzuki-Miyaura polycondensation and Friedel-Crafts cyclization. The polymers are free of ketonic defects, exhibiting excellent thermal and color stability upon annealing in air at 110 degrees C for 24 h. |
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