在 (兰他尼德盐:尿素) 深度欧性溶剂中混合 (阴离子 + 阴离子) 和 (阴离子 + 非阴离子) 表面活性剂系统的聚合
1Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
概括
深度浸泡溶剂 (DES) 有效地促进混合表面活性剂的聚合. 这些新型介质促进了阴离子,阴离子和无离子表面活性剂的自发,热驱动的自我组装,扩大了它们的应用潜力.
科学领域:
- 超分子化学 超分子化学
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
背景情况:
- 深度性溶剂 (DESs) 是分子聚合的多功能介质.
- 表面活性剂的自我组装在各种化学过程中至关重要.
- 了解新型溶剂中的混合表面活性剂行为是必不可少的.
研究的目的:
- 研究混合表面活性剂在酸-尿素DES中的自我聚合.
- 确定DES对临界聚合度 (CAC) 和相互作用的影响.
- 描述热力学驱动力和聚合数.
主要方法:
- 作为溶剂介质使用了一种酸兰他尿素 (La:U) DES.
- 研究的混合物是N-dodecyltrimethylammonium化物 (DTAB) 与二甲基硫酸盐 (SDS) 或Triton X-100 (TX-100) 的混合物.
- 采用光谱法来确定聚合数和微环境特性.
主要成果:
- 表面活性剂混合物在所有组合中很容易在 (La:U) DES中自我聚合.
- DES屏幕表面活性物头组电荷,影响CAC和相互作用 (负β).
- 聚合是自发的,主要是以热带驱动的,具有显著的吸引力相互作用.
结论:
- (La:U) DES是混合表面活性剂聚合的有效介质.
- 这项研究扩大了极性DESs作为替代溶剂的应用潜力.
- 研究结果提供了对非水性环境中的表面活性剂行为的见解.
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