Ultrahigh Molecular Weight Polyoxymethylene from Aqueous Formaldehyde Solution

Abstract Ultrahigh molecular weight polyoxymethylene with a weight average molecular weight over 1000000 was obtained from an aqueous formaldehyde solution. The molecular weight of this polymer is much higher than the reported highest molecular weight value of 46000 obtained by the condensation polymerization of formaldehyde in aqueous solution.