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

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 t...

Full description

Saved in:
Bibliographic Details
Published in:Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 2019-06, Vol.57 (12), p.1275-1282
Main Authors: Dashan, Irem, Elverici, Melisa, Balta, Demet Karaca, Temel, Binnur Aydogan, Temel, Gokhan
Format: Article
Language:English
Subjects:
Crosslinking
Decomposition reactions
dye release
Fluorescence
Gels
Image enhancement
Initiators
Light
Light irradiation
light‐responsive gel
organogel
Photodecomposition
photopolymerizaton
Polymethyl methacrylate
Polystyrene resins
Solvents
Spectrometers
Ultraviolet radiation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 Photoactive organogels are prepared by thermally initiated free‐radical polymerization and quaternization chemistry with different crosslink densities. Swelling and dye releasing properties of resulting gels are determined. Light‐responsive gels are employed as reusable heterogeneous photoinitators for methyl methacrylate polymerization as well.
ISSN:0887-624X
1099-0518
DOI:10.1002/pola.29383