Abstract
CO2/N2 and light dual stimuli-responsive worm-like micelles (WLMs) were obtained by addition of a relatively small amount of a switchable surfactant, 4-butyl-4'-(4-N,N-dimethylhexyloxy-amine) azobenzene bicarbonate (AZO-B6-CO2), sensitive to the same triggers to a binary aqueous solution of cetyltrimethylammonium bromide (CTAB) and sodium salicylate (NaSal).
Highlights
CO2/N2 and light dual stimuli‐reponsive worm‐like micelles (WLMs) were obtained by addition of a relatively small amount of a switchable surfactant, 4‐butyl‐4 ́‐(4‐N,N‐ dimethylhexyloxy‐amine) azobenzene bicarbonate (AZO‐B6), sensitive to the same triggers into a binary aqueous solution of cetyltrimethyl ammonium bromide (CTAB) and sodium salycilate (NaSal)
We report smart WLM systems which are responsive to both CO2/N2 and light irradiation when they are employed individually
By adding a dual‐switchable surfactant, 4‐butyl‐4 ́‐(4‐N,N‐dimethylhexyloxy‐amine) azobenzene bicarbonate (AZO‐B6) into a binary aqueous solution of cetyltrimethylammonium bromide (CTAB) and sodium salycilate (NaSal), the ternary solution can be gelated or form viscoelastic WLMs with high viscosity at room temperature, which can be converted to a fluid solution of low viscosity by either bubbling N2 or irradiating with UV light
Summary
CO2/N2 and light dual stimuli‐reponsive worm‐like micelles (WLMs) were obtained by addition of a relatively small amount of a switchable surfactant, 4‐butyl‐4 ́‐(4‐N,N‐ dimethylhexyloxy‐amine) azobenzene bicarbonate (AZO‐B6), sensitive to the same triggers into a binary aqueous solution of cetyltrimethyl ammonium bromide (CTAB) and sodium salycilate (NaSal). By adding a dual‐switchable surfactant, 4‐butyl‐4 ́‐(4‐N,N‐dimethylhexyloxy‐amine) azobenzene bicarbonate (AZO‐B6) into a binary aqueous solution of cetyltrimethylammonium bromide (CTAB) and sodium salycilate (NaSal), the ternary solution can be gelated or form viscoelastic WLMs with high viscosity at room temperature, which can be converted to a fluid solution of low viscosity by either bubbling N2 or irradiating with UV light.
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