Synthesis and polymerization of 2-(1-methylbut-2-en-1-yl)aniline and its products modification. (December 2021)

• Record Type: Journal Article
• Authors: Mustafin, Akhat G.; Latypova, Lyaysan R.; Andriianova, Anastasiia N.
• Is Part Of: Polymer testing. Volume 104(2021)
• Publication Date: 2021-12
• Subjects: Polyaniline -- Poly(ortho-alkylaniline) -- Solubility -- Fluorescence -- Polymer films -- Sensors; Polymers -- Testing -- Periodicals; Polymères -- Tests -- Périodiques; 620.1920287
• DOI: 10.1016/j.polymertesting.2021.107351
• Languages: English
• ISSNs: 0142-9418

Abstract

Abstract: This work is focused on modifying aniline monomers with various characteristics that allows one to study the effect of the substituent on the respective polymer. A series of new polyaniline (PANI) derivatives based on an ortho- substituted aniline derivative, 2-(1-methylbut-2-en-1-yl)aniline, were synthesized and characterized. The structures and composition of the polymers that we synthesized were confirmed by elemental analysis, proton nuclear magnetic resonance ( 1 H NMR) spectroscopy, carbon nuclear magnetic resonance ( 13 C NMR) spectroscopy, Fourier-transform infrared spectroscopy (FT-IR), and ultraviolet–visible spectroscopy (UV). Characterization by FT-IR and UV–visible spectroscopy techniques indicated that the polymers exist in protonated emeraldine forms. The polymers are soluble in common organic solvents, so they can be used to make films. It was shown the prospect of using thin polymer films in the design of chemical sensors. The impact of the substituent on the polymer characteristics is rationalized in terms of steric and electronic effects. Graphical abstract: Image 1 Highlights: There were obtained highly soluble polyaniline derivatives of polyaniline.. Varying the substituents in the polymer structure resulted in sensors with various sensitivity to the ambient humidity and ammonia concentration. Thus, a detailed study of a number of PANI derivatives with different substituents showed that the physicochemical properties of the resulting polymers can be tuned.