Effects of Preparation Temperature on the Hydroperoxide Retention Properties of Cyclodextrin Polymer Gels

Abstract

Two types of α-, β-and γ-cyclodextrin polymer gels were prepared by cross-linking of cyclodextrins with epichlorohydrin in alkali at 25 and 50°C. The degree of cross-linking of the polymer gels prepared at 25°C was slightly higher than that of the corresponding polymer gels prepared at 50°C. The resulting gels were used as the stationary phase for liquid chromatography. The separation of a mixture of tetralin (1) and tetralin monohydroperoxide (2) was attempted using hexane as the mobile phase. The retention time of (1) was basically the same in all cases. In contrast α-, β-and γ-cyclodextrin polymers prepared at 25°C retained (2) longer than the corresponding polymers prepared at 50°C.