Synthesis and properties of conjugated polymers containing 3,9‐carbazolylene and silylenevinylene moieties in the main chain |
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| Authors: | Tatsuya Sasano Hiromitsu Sogawa Kosaku Tamura Masashi Shiotsuki Toshio Masuda Fumio Sanda |
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| Affiliation: | 1. Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Nishikyo‐ku, Kyoto 615‐8510, Japan;2. Department of Environmental and Biological Chemistry, Faculty of Engineering, Fukui University of Technology, 3‐6‐1 Gakuen, Fukui 910‐8505, Japan |
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| Abstract: | Novel conjugated polymers containing 3,9‐carbazolylene and silylenevinylene moieties were synthesized by the hydrosilylation polymerization of 1,4‐bis(3‐ethynyl‐9‐carbazolyl)benzene ( 1 ) with various bis(hydrosilane)s or dihydrosilanes using a rhodium catalyst. Polymers with weight‐average molecular weights ranging from 5400 to 20,000 were obtained in 55–97% yields by the polyaddition with a rhodium catalyst in toluene at 25 °C for 24 h. All the polymers were soluble in CHCl3 and THF, and had predominantly trans‐structures. The polymers exhibited λmax at a longer wavelength region than 1 , and emitted fluorescence in 14–50% quantumn yields. The polymers were oxidized and reduced in the region of 0.4–1.6 V, and thermally stable up to 200 °C under air. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 1815–1821, 2010 |
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| Keywords: | addition polymerization carbazole conjugated polymers fluorescene polyaddition polysilanes selectivity silicones structure‐property relations thermogravimetric analysis (TGA) UV‐Vis spectroscopy |
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