NEW SOLVATING POLYETHER NETWORKS

Copolyethers were prepared by ring-opening polymerization of two oxira nes, ethylene oxide (EO) and allyl glycidyl ether (AGE), in a high-pre ssure reactor vessel. The random distribution of AGE units in the copo lymers prepared by an anionic route, results in a marked decrease of t he crystallinity as well as of the melting point. Free-radical initiat ion of the solvating copolymer improves the mechanical properties whil e reducing still the crystallinity and melting point;The cross-linked electrolytes provide high conductivities from ambient temperature.