Selectivity and priority on inclusion of amylose toward guest polyethers and polyesters in vine-twining polymerization

Abstract

In this paper, we describe that amylose selectively includes poly(tetrahydrofuran) (PTHF) or poly(δ-valerolactone) (PVL) from a mixture of two resemblant polyethers, i.e., poly(oxetane) (POXT) and PTHF, or a mixture of two resemblant ; polyesters, i.e., PVL and poly(e-caprolactone) (PCL) in vine-twining polymerization. These selective inclusions were achieved by the formation of amylose-polymer inclusion complexes in phosphorylase-catalyzed enzymatic polymerization of α-D-glucose 1-phosphate from maltoheptaose as a primer in the presence of mixtures of POXT/PTHF and PVL/PCL, respectively. In addition, we evaluated the priority on inclusion of amylose toward these guest polymers in the vine-twining polymerization method to be PTHF > PVL > POXT > PCL. ©2009 The Society of Polymer Science.