Chemical detectors comprising conjugated polymers as sensitive fluorescent materials, and their use for the detection or quantitative determination of nitrated compounds

摘要

Using a chemical sensor comprising, as sensitive material, at least one polymer comprising at least one repeated corresponding to the following general formula (I) rest: ** ** Formula in which: A1, A2 and A3 represent, independently of one another, a phenyl group or a substituted or unsubstituted thienyl group; and B represents a C2 symmetry chiral group, substituted or unsubstituted, or a group corresponding to one of formulas (a), (b) and (c) following ** ** Formula in which: X represents a hydrocarbon group linear, branched or cyclic, saturated or unsaturated, comprising from 1 to 100 carbon atoms, possibly comprising this hydrocarbon group one or more heteroatoms and / or one or more chemical functions containing at least one heteroatom, and may be a aromatic or heteroaromatic group, substituted or unsubstituted, or comprise one or more aromatic or heteroaromatic groups, substituted or unsubstituted; R1 and R2 represent independently of each other: * a hydrogen atom or halogen atom; * A linear hydrocarbon group, branched or cyclic, saturated or unsaturated, comprising from 1 to 100 carbon atoms, possibly comprising this hydrocarbon group one or more heteroatoms and / or more chemical functions containing at least one heteroatom and may be a group aromatic or heteroaromatic, substituted or unsubstituted, or comprise one or more aromatic or heteroaromatic groups, substituted or unsubstituted; * or a chemical function comprising at least one heteroatom; for detection or quantitative determination of one or more nitro compounds.