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生物基离子表面活性剂的聚合特征,基硫酸盐在水性CaCl2溶液中:囊泡和支持双层形成
Tadashi Sugahara1, Haruna Ichihashi1, Kana Tsumura1
1Material Science Research, Kao Corporation, 1334 Minato, Wakayama-shi, Wakayama 640-8580, Japan.
Langmuir : the ACS journal of surfaces and colloids
|September 30, 2024
概括
阳性表面活性剂基硫酸盐 (C18HAS) 在化溶液中形成囊泡. 这些囊泡可以在负电荷的表面上形成支的双层,这表明它们可能被用作洗剂或表面修饰剂.
科学领域:
- 合体和表面科学科学
- 材料科学 材料科学 材料科学
- 生物化学 生物化学
背景情况:
- 囊泡和支持的双层在各种应用中至关重要.
- 阴离子表面活性剂通常用于负电荷表面的支持双层形成.
- 离子表面活性剂在形成这种结构中的行为不太清楚.
研究的目的:
- 为了研究离子表面活性剂C18HAS在水溶液CaCl2中的聚合行为.
- 确定C18HAS形成囊泡和支双层的条件.
- 探索C18HAS作为洗剂或表面修饰剂的潜在应用.
主要方法:
- 平衡面张测量平衡面张测量
- 溶于油的染料溶解化测试
- 紫外线可见透射率和烯光谱学.
- 动态光散射是一种动态光散射.
- 结断裂传输电子显微镜学
- 高速原子力显微镜的高速原子力显微镜.
主要成果:
- 在CaCl2水溶液中,C18HAS会形成囊泡,受C18HAS/CaCl2分子比率的影响.
- 阶段分离和囊泡形成发生在 2:1 比以下,高于C18HAS Ca盐的溶解度极限.
- 在 2:1 摩尔比率以上,C18HAS 形成菌粒,导致囊泡溶解.
- 在负电荷的表面上,C18HAS囊泡自发地形成支的双层.
结论:
- C18HAS的聚合行为和囊泡形成高度依赖于CaCl2度和摩尔比率.
- 尽管是阴离子,但C18HAS囊泡可以在负电荷的表面上形成支层,类似于阴离子表面活性剂.
- 优化的C18HAS/CaCl2摩尔比率表明了作为洗剂组件和表面修饰剂的潜在应用.
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