2023
DOI: 10.32604/jrm.2022.022809
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CO2-Responsive Smart Foams Stabilized by an Extremely Rigid Bio-Based Surfactant

Abstract: Environment friendly and intelligent surfactants have attracted great attention in recent years. A bio-based CO 2 responsive surfactant rosin acid dimaleimide choline (R-BMI-C) with an extremely rigid skeleton was prepared using rosin and choline as raw materials by Diels-Alder addition reaction and acid-base neutralization reactions. Its structure was confirmed by IR and 1 H NMR spectra. The foams' properties of R-BMI-C could be adjusted by bubbling CO 2 /N 2 to change the structure of the surfactant. At pH 1… Show more

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