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Versatile light‐responsive organogels: Evaluation of their dye releasing and photoinitiation behaviors

Author:
Dashan, Irem, Elverici, Melisa, Balta, Demet Karaca, Temel, Binnur Aydogan, Temel, Gokhan
Source:
Journal of polymer science 2019 v.57 no.12 pp. 1275-1282
ISSN:
0887-624X
Subject:
absorption, composite polymers, crosslinking, eosin, free radicals, irradiation, models, organogels, photolysis, polymerization, polystyrenes, scanning electron microscopes, solvents, spectrometers, ultraviolet radiation, ultraviolet-visible spectroscopy
Abstract:
Light‐responsive crosslinked structures were prepared by a straightforward quaternization strategy using chloride functional polystyrene copolymers and commercially available Michler's ketone with varying feed ratios. Resulting organogels demonstrated excellent solvent absorption and their swelling characteristics were altered by UV‐light irradiation. According to scanning electron microscope images, UV‐illuminated samples showed an obvious photodecomposition, which enhanced their solvent uptake capacity with increase of UV exposure. Additionally, release behavior of eosin Y as a model compound was determined by UV–vis and fluorescence spectrometers. Achieved photoactive gels were also employed as the reusable heterogeneous initiators for photoinduced free‐radical polymerization of methyl methacrylate. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 1275–1282
Agid:
6459064