PROBLEM TO BE SOLVED: To provide an easy-to-synthesize crosslinked-type diphenylamine-based polymer having excellent fluorescent property.;SOLUTION: The crosslinked-type diphenylamine-based polymer is provided, being obtained by the following process: In a nitrogen atmosphere, 2, 8-dibromo-10, 11-dihydro-5-(3, 3-dimethylaminopropyl)dibenzazepine and bis(trimethylstannyl)thiophene are dissolved in toluene. Subsequently, tetrakistriphenylphosphine palladium(0) is added to the resultant solution followed by temperature rise to 90°C and agitation for 48 h. The resultant reaction liquid is poured to methanol, and the powder obtained is put to filtration.;COPYRIGHT: (C)2008,JPO&INPIT
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