In order to fabricate a novel fluorescence probe for anion sensing, 1-[3,5-bis(trifluoromethyl)phenyl]-3-(2,4-diethynylphenyl)urea (1  ) was polymerized through the copper(I)-mediated oxidative coupling polymerization to produce urea-functionalized poly(phenylenebutadiynylene) (poly-1  ). The fluorescence turn-on phenomenon of poly-1   was demonstrated to be induced by the anion addition. On the basis of various analyses, this fluorescence turn-on detection of anions was considered to be attributed to the original fluorescence recovery of poly-1  based on the disassembly of the poly-1  aggregates through the urea/anion complex formation.

Synthesis of urea-functionalized poly(phenylenebutadiynylene) as a turn-on fluorescent probe for anion sensing

243rd National Meeting (2012)

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