Preparation of Inclusion Complexes Composed of Amylose and Strongly Hydrophobic Polyesters in Parallel Enzymatic Polymerization System

Abstract

We describe the preparation of inclusion complexes composed of amylose and strongly hydrophobic polyesters in a parallel enzymatic polymerization system. This was achieved by carrying out phosphorylase-catalyzed enzymatic polymerization of α- d -glucose 1-phosphate from maltoheptaose, giving rise to amylose as a host, and lipase-catalyzed enzymatic polymerization of dicarboxylic acids and diols, leading to the guest polyesters, simultaneously. When the numbers of methylene units in a dicarboxylic acid and a diol as the monomers for the guest polyester were 8, the corresponding amylose−polyester inclusion complex was obtained. On the other hand, use of the monomers having methylene units of 10 and 12 hardly gave the corresponding amylose−polyester inclusion complexes.