A general method for the separation of amphiphilic surface-active poly(ethylene glycol) mono- and di-esters with long-chain ionic liquid-based biphasic systems

Abstract

A new method for the effective separation of amphiphilic poly(ethylene glycol) mono- and di-esters with long-chain ionic liquid-based biphasic systems has been developed. These biphasic systems exhibited high selectivity, a large distribution coefficient and a good ability to eliminate the emulsification resulting from the surface active character of those amphiphilic molecules.