Fluorescent conjugated polymers (FCPs) have gained a lot of attention because of their ability to act as sensors to detect various substances in chemical and biological systems. Their conjugated backbones provide excellent electron migration and signal amplification. These polymers fluoresce in the presence of analytes and allow determination at very low concentration. Urea receptors are known to be selective for fluoride anions thanks to the formation of hydrogen bonding with the target species. In this work, two fluorescent conjugated polymers, phenylurea-PPE and anthraceneurea-PPE, were synthesized and characterized for their use as potential fluoride sensors. Each polymer is composed of a linker monomer and a receptor site attached to the conjugate polymer molecule. Characterization of these new chemical sensors also provides insight into the photophysicial properties of two different fluorophores: the phenyl ring and the anthracene unit as polymer building blocks for FCPs.

Synthesis of two fluorescent conjugated polymers with urea receptors as chemical sensors to detect fluoride ions

255th National Meeting (2018)

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