Tire Hydrophobic Effect

The ernes of ionic surfactants are usually depressed by tire addition of inert salts. Electrostatic repulsion between headgroups is screened by tire added electrolyte. This screening effectively makes tire surfactants more hydrophobic and tliis increased hydrophobicity induces micellization at lower concentrations. A linear free energy relationship expressing such a salt effect is given by ... 

Tire importance of hydrophobic interactions in the aqueous acceleration is further demonstrated by a qualitative study described by Jenner on the effect of pressure on Diels-Alder reactions in water and a number of organic solvents. Invariably, the reactions in water were less accelerated by pressure than those in organic solvents, which is in line with the notion that pressure diminishes hydrophobic interactions. 

We have discussed the role of hydrogen bonding and hydrophobic interaction in the volume collapse of NIPA-AAc gels. However, one may claim that the gel system examined would be a special kind of polyelectrolyte gel. Thus we have tired further to examine the effects of both intermolecular forces on the gel transition with another polyelectrolyte gel. 

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