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基于胆化的深度浸泡溶剂的物理化学和热特性
Afiqah Liana Sazali1, Najla AlMasoud2, Siti Khadijah Amran1
1Universiti Kuala Lumpur Malaysian, Institute of Chemical and Bioengineering Technology (UniKL MICET), 78000, Alor Gajah, Melaka, Malaysia.
这项研究研究了以胆化物为基础的含乳酸和甘油的深度浸泡溶剂 (DES). 摩拉比率显著影响了它们的物理化学和热特性,这对于各种应用至关重要.
科学领域:
- 物理化学 物理化学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 深度乙溶剂 (DESs) 是具有可调节性质的可调节溶剂.
- 胆化物 (ChCl) 是DESs中常见的键受体 (HBA).
- 了解键捐赠体 (HBD) 和摩尔比对DES属性的影响对于其应用至关重要.
研究的目的:
- 研究基于ChCl的DESs的物理化学和热特性.
- 检查HBD (乳酸和糖醇) 的不同比对这些特性的影响.
- 为各种应用提供对DES属性的基本见解.
主要方法:
- 合成的 ChCl:乳酸 (LA) 和 ChCl:甘油 (Gly) 在摩尔比率 1:2 到 1:10 的 DES.
- 测量的物理化学特性包括pH值,密度,折射率和粘度.
- 确定热性质,例如分解和结温度.
- 分析了粘度的激活能量.
主要成果:
- 与ChCl:Gly DESs (4.0-5.0) 相比,ChCl:LA DESs表现出较低的pH (0-1.0) 值.
- 密度和折射率随着更高的LA/Gly含量而增加,这是由于更强的键和更紧的分子包装.
- 粘度随着LA/Gly摩尔比较的增加而增加,但随着温度的增加而下降;ChCl:LA显示出更大的粘度-温度依赖性.
结论:
- 摩尔比率显著改变了基于ChCl的DESs的物理化学和热特性.
- 选择HBD (乳酸与糖醇) 影响了DES特性,原因是结相互作用的差异.
- 这些发现为优化特定应用的DES提供了关键数据.
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