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Colloid and Polymer Science

Erschienen in:

17.11.2018 | Original Contribution

Oxidation-responsive cubic phase incorporating poly(hydroxyethyl acrylamide-co-phenyl vinyl sulfide)

verfasst von: Seok Ho Park, Jin-Chul Kim

Erschienen in: Colloid and Polymer Science | Ausgabe 1/2019

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Abstract

Oxidation-responsive monoolein (MO) cubic phase was prepared by including poly(hydroxyethyl acrylamide-co-phenyl vinyl sulfide) (P(HEAA-co-PVS)) in the water channel of the cubic phase. X-ray photon spectroscopy revealed that the sulfide moiety (i.e., the PVS unit) of the copolymers was oxidized to the sulfoxide moiety and the sulfone one after they were treated with H₂O₂. The interfacial activity of P(HEAA-co-PVS) markedly decreased by H₂O₂, possibly because the PVS unit was oxidized and the amphiphilicity of the copolymer decreased. The release degree of Allura Red AC (a dye) loaded in the cubic phase containing P(HEAA-co-PVS) was higher as the H₂O₂ concentration was higher. The copolymer would lose most of its surface activity upon oxidation and it could diffuse out of the water channel, leading to a reduction in the diffusion resistance and a promoted release.

Vorheriger Artikel Adsorption of poly(styrenesulfonate) onto different-sized alumina particles: characteristics and mechanisms

Nächster Artikel Finite ion size effect on the force and energy of the double-layer interaction between two parallel similar plates at arbitrary separations in an electrolyte solution

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Titel: Oxidation-responsive cubic phase incorporating poly(hydroxyethyl acrylamide-co-phenyl vinyl sulfide)
verfasst von: Seok Ho Park
Jin-Chul Kim
Publikationsdatum: 17.11.2018
Verlag: Springer Berlin Heidelberg
Erschienen in: Colloid and Polymer Science / Ausgabe 1/2019
Print ISSN: 0303-402X
Elektronische ISSN: 1435-1536
DOI: https://doi.org/10.1007/s00396-018-4437-1

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