On October 11, 2022, Aljuaid, Mohammed; Houck, Hannes A.; Efstathiou, Spyridon; Haddleton, David M.; Wilson, Paul published an article.COA of Formula: C4H8ClNOS The title of the article was Photocrosslinking of Polyacrylamides Using [2 + 2] Photodimerisation of Monothiomaleimides. And the article contained the following:
The [2 + 2] photocycloaddition of monothiomaleimides (MTMs) has been exploited for the photocrosslinking of polyacrylamides. Polymer scaffolds composed of dimethylacrylamide and varying amounts of D,L-homocysteine thiolactone acrylamide (5, 10, and 20 mol %) were synthesized via free-radical polymerization, whereby the latent thiol functionality was exploited to incorporate MTM motifs. Subsequent exposure to UV light (λ = 365 nm, 15 mW cm-2) triggered intermol. crosslinking via the photodimerization of MTM side chains, thus resulting in the formation of polyacrylamide gels. The polymer scaffolds were characterized using Fourier transform IR spectroscopy, UV-visible spectroscopy, 1H NMR spectroscopy, and size exclusion chromatog., confirming the occurrence of the [2 + 2] photocycloaddition between the MTM moieties. The mech. and phys. properties of the resulting gels containing various MTM mol % were evaluated by rheol., compression testing, and swelling experiments In addition, SEM was used to characterize the xerogel morphol. of 5 and 10 mol % MTM hydro- and organo-gels. The macro-porous morphol. obtained for the hydrogels was attributed to phase separation due to the difference in solubility of the PDMA modified with thiolactone side chains, provided that a more homogeneous morphol. was obtained when the photo-gels were prepared in DMF as the solvent. The experimental process involved the reaction of 3-Aminodihydrothiophen-2(3H)-one hydrochloride(cas: 6038-19-3).COA of Formula: C4H8ClNOS
The Article related to photocrosslinking polyacrylamide photodimerization monothiomaleimide, Placeholder for records without volume info and other aspects.COA of Formula: C4H8ClNOS
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