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Abstract Smart foams were fabricated by using a novel switchable surfactant, AZO-B4, which contains tertiary amine and azobenzene groups corresponding to CO 2 /N 2 and photo stimuli. The foamability… Click to show full abstract
Abstract Smart foams were fabricated by using a novel switchable surfactant, AZO-B4, which contains tertiary amine and azobenzene groups corresponding to CO 2 /N 2 and photo stimuli. The foamability and foam stability of AZO-B4 is similar as cetyltrimethylammonium bromide (CTAB). On the one hand, the foam is reversible response to CO 2 /N 2 . On the other hand, the foam can be reversible triggered by UV irradiation. All the foaming/defoaming can be performed at room temperature. The multi-stimuli responsive systems can fine wide application in industries where stabilization and destabilization of foams are both desired.
Journal Title: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Year Published: 2017
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