عنوان مقاله [English]
Nowadays, the identification of amines is important because of the presence of these toxic substances in industrial, environmental and marine food corruption. A possible method for the identification of amine systems is based on dyes. The purpose of the chemical sensors is to identify how to eliminate these toxic substances. There are different colorimetric methods for the identification of amine compounds, which are fluorescence chemical sensors, an appropriate method for identification. Fluorescence is widely used in optical sensors, cellular imaging to detect cancer types and security issues. The effect of the environment, including the effect of the solvent, the protonation, the polarity of the conjugate fluorescence organic compounds, and the addition of the donar-acceptor substitute to the derivatives of Distyrylbenzene and the polymers combined with conjugated organic compounds, change the optical properties. Distyrylbenzene derivatives have fluorescence properties. Adding different substitute to these derivatives will change the emission spectrum. Among these, the oligo(p- phenylenevinylene) (OPV) as donar group and propylenebisimide (PBIs) as acceptor group, which, if aggrigated, increases the fluorescence quenching. To create a suitable sensor without leaking dye into the surface of polymer, a covalent bond between the polymer and the dye material should be established, which is created by two-stage dispersion polymerization . By adding these polymers to one of the derivatives of Distyrylbenzenedialdehyde, a sensor can be identified types of amines that change the color of the amine solution by changing the pH and polarity, different amines have different emission spectra. Of course, the identification of amine in solid state is better than solution, with increasing pH and polarity, batocromic shifts are observed. In general, the emission wavelengths of symmetric fluorescence conjugate compounds are highly sensitive to different amines and, by investigating the optical behavior of these compounds, it is possible to identify the amines.