Temperature and Additive Effects on Phase Behavior

More hydrophobic additives such as free fatty acids and their esters and amides, long-chain monohydric alcohols, and nitriles may have an even more dramatic effect on the phase behavior of a surfactant due to solubilization phenomena. The general subject of solubilization in micellar systems is discussed in Chapter 6. For now, we will focus on the effects that the presence of solubilized materials may have on liquid crystal phases. 

Four main classes of solubilizates can be defined on the basis of the overall nature of the additive. These are the completely hydrophobic materials, such as 

---