Poly(2-ethyl-2-oxazoline)/poly(acrylic acid) 계의 수소결합 특성 및 이용

초록

The properties of hydrogen bonding between poly(2-ethyl-2-oxazoline)[PEOx] and poly(acrylic acid)[PAA] were investigated. PEOx and PAA formed stable complexes and precipitated due to hydrogen bonding between hydrogen of PAA and oxygen of PEOx in acidic conditions (below pH 4.3). Optimum reaction ratio of PEOx and PAA was determined as mass ratio 1:1.5 for applications in aqueous two phase system. The mixtures of the polymers formed aqueous two phase system with dextran solution after breaking hydrogen bonding. This properties can be used for the recovery of a target product.