Open AccessFabrication and Characterization of Functional pH-Responsive Poly (S-Co-DEAMVA)-g-Tryptophan
Author(s) -
Momen S. A. Abdelaty
Publication year - 2021
Publication title -
international research journal of pure and applied chemistry
Language(s) - English
Resource type - Journals
ISSN - 2231-3443
DOI - 10.9734/irjpac/2021/v22i930430
Subject(s) - chemistry , polymer chemistry , carbon 13 nmr , monomer , amine gas treating , cationic polymerization , schiff base , copolymer , fourier transform infrared spectroscopy , side chain , tryptophan , aldehyde , proton nmr , polystyrene , organic chemistry , polymer , nuclear chemistry , amino acid , catalysis , chemical engineering , biochemistry , engineering
Vanillin was used to synthesize cationic monomers from the amine group with a tertiary amine. It has both an amine and an aldehyde group. For that, it helps graft to form Schiff base with amino acid-like tryptophan. It is abbreviated by {2-[(diethylamino) methyl]-4-formyl-6-methoxyphenyl acrylate} DEAMVA and evaluated by, e.g., 1H NMR, 13C NMR, and FT IR results were compared with the chemical structure elevated good agreement. 10 and 25 mol % of vanillin monomer was copolymerized with (S). The copolymers of poly (S-co-DEAMVA) were investigated by 1H NMR, FTIR, GPC, and DSC. The grafting with tryptophan has also been modified and exposed to the same investigation methods; further, UV/Vis spectroscopy has designated the pH responsiveness. The study aims to improve the general characterization of polystyrene and produce functional pH-responsive polymer for graft biological molecules in the future.