Erythrosine/Triethanolamine System to Elaborate Crosslinked Poly(2‐hydroxyethylmethacrylate): UV‐Photopolymerization and Swelling Studies

Abstract

Summary A system composed of Erythrosine and Triethanolamine was applied as photo‐initiator for the UV‐photopolymerization of 2‐Hydroxyethyl methacrylate together with a crosslinking agent 1,6‐Hexanediol diacrylate, in aqueous medium. The analysis of UV‐visible and infrared spectra, which were taken at different times during polymerization/crosslinking, makes it possible to obtain useful information on the reaction mechanism. The swelling behavior of these elaborated crosslinked polymer networks in different solvents is examined. It was found that the disappearance of the Erythrosine molecule depends on the nature of the solvent. The theoretical results calculated with the Fick diffusion model show a good correlation with the swelling experiments.

Erythrosine B Catalyzed Visible‐Light Photoredox Arylation–Cyclization of N‐Alkyl‐N‐aryl‐2‐(trifluoromethyl)acrylamides to 3‐(Trifluoromethyl)indolin‐2‐one Derivatives

“…It is widely used as a food colorant (E127, FD&C Red No. 3) and a painting ink, but chemical applications of this compound have remained within a narrow band and include its use in photodegradation, photodynamic therapy experiments, photoinitiated radical polymerization, and photodehydrogenation and its use as a triplet sensitizer for the cis/trans isomerization of alkenes …”

Organic Dye-Catalyzed, Visible-Light Photoredox Bromination of Arenes and Heteroarenes Using N-Bromosuccinimide

“…Erythrosine B is a member of the xanthene family of dyes and is widely used as a food colorant (FD&C Red no. 3) and painting ink, but thus far, the chemical applications of erythrosine B have remained remarkably limited − relative to other xanthene dyes such as eosin Y, fluorescein, and rose bengal.…”

Cleaning of Wastewater Using Crosslinked Poly(Acrylamide-co-Acrylic Acid) Hydrogels: Analysis of Rotatable Bonds, Binding Energy and Hydrogen Bonding

“…This negative situation has motivated many researchers to publish many reports in the field of the treatment of water polluted with dyes [ 13 , 14 , 15 ]. Several physical and chemical techniques have been developed to purify water from these compounds, including photocatalysis, oxidation, filtration, coagulation/flocculation, and adsorption [ 16 , 17 , 18 , 19 , 20 ].…”