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Two new vinylene alternating copolymers F and C that contained 2,4,6-triphenylpyridine as a common moiety and fluorene or carbazole, respectively, as an alternating moiety were prepared by Heck coupling. They showed an outstanding thermal stability being stable up to approximately 350°C and had relatively high glass transition temperatures (140 and 111°C). The existence of the 2,4,6-triphenylpyridine...