Fourier transform infrared spectroscopy for irradiation coumarin doped polystyrene polymer films by alpha ray

Abstract

FTIR spectroscopy has been in use broadly to study microscopic areas in polymers for the last years. The FTIR transmission spectra of coumarin laser dye, polystyrene and coumarin doped polystyrene films with different doping ratio of coumarin solution have been studied. These spectra measured and explained for all films before and after Alpha irradiation with different irradiation times. All samples prepared by casting method. FTIR corroborate chemical bonds of coumarin dye molecules and polystyrene films by producing an IR absorption spectrum when increasing doping ratio of coumarin solution and when irradiation by Alpha source. There are some bonds disappeared after irradiation.

Complete Photocatalytic Mineralization of Microplastic on TiO2 Nanoparticle Film

“…The band at 1,527 cm −1 was associated with stretching of the C=C bonds ( Gipson et al, 2015 ) from the aromatic ring, and the intensity of these bands increases continuously with increasing the illumination time of TiO 2 /PS composite. The band that appears at 1,425 cm −1 was due to C-H bend ( Truc et al., 2017 ), whereas the band at 873 cm −1 corresponds to C-H stretching vibration of the aromatic ring and deformation vibration in cyclic carbonyl compounds ( Al-Kadhemy et al., 2016 ). The bond smashing provides evidence that the TiO 2 and UV irradiation accelerate the bond cleavage of PS.…”

Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy Characterization of Adhesive Produced From Polystyrene Waste

“…The results from FTIR spectra revealed the conversion of polystyrene waste to adhesive attainment was achieved. The polystyrene formation which makes it unsaturated aromatic hydrocarbon had carbon carbon double bond (C=C) functional group [4] covalently joined together with the additives to form saturated hydrocarbon with C-C stretching aromatics and C-N stretching aliphatic functional group. This implies that PS structure converted to the new product due to diphenylamine and diethylene glycol dibenzoate additive.…”

“…Fourier transforms infrared (FT-IR) spectra instrument has been used to study the existence of different compounds in a mixture [24]. It is the ideal process of identification and analyzing chemical components in unknown materials, qualitatively or consistency of samples and amount of components in a mixture [4]. Functional groups are identified within the ranges of 4000-1300 cm -1 bands and fingerprints are in the ranges of 1300-400 cm -1 bands when radiated [7,28,13,22,8,1,9].…”

“…Authors [29] used FT-IR to characterize native starch, oxidized starch; U-O-st adhesive and nano-TiO2-U-Ost adhesive to determine the existing functional groups dominating during the oxidation processes. Researchers [4] applied FT-IR instrument to study the transmission spectra of laser dye, polystyrene and Coumarin chemical structure and bonds. Authors [10] used FT-IR to study the "characterization of the ureaformaldehyde (UF) resins modified with styrenemaleic amic acid (SMAA) derivatives".…”

Recent advances in hybrid measurement methods based on atomic force microscopy and surface sensitive measurement techniques

“…It is based on the absorption of light from the spectrum of a light source. Nowadays, IR is measured via the Fourier-transform technique also known as Fourier-transform infrared spectroscopy (FTIR), 259 which enables fast and highly accurate measurement of whole spectra. Molecule vibrations, which change the dipole moment of the molecule, are IR active and may absorb light of a specic wavelength.…”