Compositions for forming supported membranes by thermal and UV initiated mass polymerization having improved properties

Abstract

Embodiments in accordance with the present invention encompass a composition for the formation of carbonate anion exchange membrane comprising one or more of polycyclic olefinic monomers of formula (I) and one or more monomers of formula (III) for forming anion exchange membrane optionally in combination with one or more monomers of formula (II). The composition undergoes mass vinyl addition polymerization either under thermal or photolytic conditions and then formed into ionomers on a suitable membrane support. The membrane supports thus formed are suitable as anion exchange membranes for fabricating a variety of electrochemical devices, among others. More specifically, the ionomeric membranes are formed on a variety of supports which contain a variety of quaternized amino functionalized norbornene monomeric units which are lightly crosslinked (less than five mol%). The membranes so formed exhibit very high ionic conductivity of up to

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