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Imparting Photo-responsive Function to Thermo-responsive Iridescent Emulsions

机译：将光响应功能赋予热响应性虹彩乳液

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In our previous paper, we reported that thermo-responsive emulsions can be prepared based on a long-chain amidoamine derivative (C18AA) and tetraoctylammonium bromide (TOAB), and that the C18AA + TOAB emulsions developed a characteristic interference color in a narrow temperature range. However, the coloration of the original C18AA + TOAB at room temperature exhibited poor brightness. In the present study, we show that the addition of NaOH is effective in both lowering the coloration temperature and improving the brightness of C18AA + TOAB emulsion considerably. Furthermore, we demonstrate that photo-response function can be imparted to C18AA + TOAB iridescent emulsions by introducing a photochromic naphthopyran derivative (Pyran) that reversibly changes from white to yellow upon UV irradiation. The C18AA + TOAB emulsions containing Pyran shows a dual stimuli-responsive iridescent property, and the emulsion color is controllable and reversible through both UV irradiation and temperature.
机译：在我们之前的论文中，我们报道了可以在长链酰胺基胺衍生物（C18AA）和四辛基溴化铵（TOAB）的基础上制备热敏性乳液，并且C18AA + TOAB乳液在狭窄的温度范围内会产生特征性的干涉色。但是，原始的C18AA + TOAB在室温下的着色显示较差的亮度。在本研究中，我们表明添加NaOH可以有效降低着色温度并显着提高C18AA + TOAB乳液的亮度。此外，我们证明可以通过引入光致变色萘并吡喃衍生物（吡喃）在C18AA + TOAB虹彩乳剂中赋予光响应功能，该衍生物在紫外线照射下可逆地从白色变为黄色。含有Pyran的C18AA + TOAB乳剂显示出双重的刺激响应性虹彩性质，并且乳剂的颜色在紫外线照射和温度下都是可控制的和可逆的。

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