POLYMER FUNCTIONAL FILM, STACK OR DEVICE PROVIDED WITH POLYMER FUNCTIONAL FILM, AND METHOD OF PRODUCING POLYMER FUNCTIONAL FILM

摘要

A polymer functional film is provided which comprises a porous support body, and a resin layer and an auxiliary layer which are supported on the porous support body. Both the resin layer and the auxiliary layer contain an ion exchange polymer having either an anion exchange group or a cation exchange group. The charge of the ion exchange groups of the ion exchange polymers contained in the resin layer and the auxiliary layer are opposite, and the ion exchange polymers contained in the resin layer and the ancillary layer are both polymers that include a unit obtained from an acryloyl group optionally having an alkyl group at the α-position. In addition thereto, a stack or device provided with said polymer functional film, and a method of producing the polymer functional film are provided.