期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 23, 期 2, 页码 1381-1391出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cp05491g
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资金
- BASF SE
Amphiphilic molecules, often charged, can enhance the solubility of hydrophobic compounds in water, showing specific ion effects. These effects can either strengthen or weaken solubilisation power of amphiphilic molecules, depending on their degree of ion hydration, and may even transform them into anti-hydrotropes.
Amphiphilic molecules (e.g. hydrotropes) that enhance the solubility of hydrophobic compounds in water are often charged. As a result, such compounds also show specific ion effects. These effects can either strengthen or weaken the solubilisation power of amphiphilic molecules, depending on their degree of ion hydration. They can even prevail and transform an apparent solubilizer into an anti-hydrotrope, i.e. a salting-out agent. In the present paper, we discuss this subtle balance between specific (Hofmeister) effects exerted by ionic headgroups and the hydrophobicity of the residual compound structure, including the size of the molecule and the presence of electron-withdrawing groups.
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