This study describes the enhancement in the solubility and controlled-release of fragrance agents (menthol, four n-alkanols, and three aromatic esters) using three CO₂ switchable surfactants (N-alkylimidazolium bicarbonates). The surfactants significantly improved the solubility of fragrance agents in water. N-Dodecylimidazolium bicarbonate was the most effective surfactant to solubilize menthol. A stability test indicated that the surfactant could stably disperse menthol in water. Moreover, the surfactants improved the solubility of n-alkanols to different levels, however, the solubility of the aromatic esters equally. The release of menthol from the surfactant solution under N₂ at different durations of bubbling time, temperatures, and flow velocities were studied.

中文翻译：

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CO2 可转换表面活性剂水溶液中芳香剂的增溶和释放

_{本研究描述了使用三种 CO 2}可转换表面活性剂（N-烷基咪唑碳酸氢盐）增强香料（薄荷醇、四种正链烷醇和三种芳族酯）的溶解度和控释。表面活性剂显着提高了香料在水中的溶解度。N-十二烷基咪唑鎓碳酸氢盐是增溶薄荷醇最有效的表面活性剂。稳定性测试表明，该表面活性剂可以稳定地将薄荷醇分散在水中。此外，表面活性剂将正链烷醇的溶解度提高到不同程度，而芳族酯的溶解度相同。_{N 2}下表面活性剂溶液中薄荷醇的释放在不同的起泡时间、温度和流速进行了研究。