alexa Hybrid CO2-philic Surfactants with Low Fluorine Content
Environmental Sciences

Environmental Sciences

Journal of Petroleum & Environmental Biotechnology

Author(s): Azmi Mohamed, Martin Hollamby

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The relationships between molecular architecture, aggregation, and interfacial activity of a new class of CO2-philic hybrid surfactants are investigated. The new hybrid surfactant CF2/AOT4 [sodium (4H,4H,5H,5H,5H-pentafluoropentyl-3,5,5-trimethyl-1-hexyl)-2-sulfosuccinate] was synthesized, having one hydrocarbon chain and one separate fluorocarbon chain. This hybrid H–F chain structure strikes a fine balance of properties, on one hand minimizing the fluorine content, while on the other maintaining a sufficient level of CO2-philicity. The surfactant has been investigated by a range of techniques including high-pressure phase behavior, UV–visible spectroscopy, small-angle neutron scattering (SANS), and air–water (a/w) surface tension measurements. The results advance the understanding of structure–function relationships for generating CO2-philic surfactants and are therefore beneficial for expanding applications of CO2 to realize its potential using the most economic and efficient surfactants.

This article was published in Langmuir and referenced in Journal of Petroleum & Environmental Biotechnology

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