Abstract
Calix[4]resorcarene(n-Host) is the host molecule that forms complex via multiple hydrogen-bonding with polar organic compounds such as cyclic diols and saccharides. This host shows molecular recognition ability, but this ability is performed in solution. Therefore, the polymer membranes containing n-Host were prepared because materialization of the host molecule is necessary to use functions widely.
The characterizations of n-Host in the membranes were examined by adsorption of guest molecules. The polymer membranes were shaken in the solution of each guests (cyclic diols, cyclohexanol, 1,2,3-cyclohexanetriol). The solution before and after the adsorption were investigated by HPLC. Binding amounts of membrane were calculated by HPLC peak area change before and after the adsorption. Binding amounts of cyclic diols became the largest when uses solution of MeOH 25vol% as solvent. In two kinds of solvents, binding amounts of cyclohexanol and 1,2,3-cyclohexanetriol were small comparing with 1,2- , 1,3- and 1,4-cyclohexanediols. On the other hand, the binding amounts for cyclic diols of polymer membranes containing n-Host (10wt%, 15wt% and 20wt%) were compared. The binding amounts were increased by the increment of host molecules in 15wt%, but binding amounts were decreased in 20wt%.
