CROSSLINKING POLYMER-SUPPORTED POROUS FILM FOR BATTERY SEPARATOR AND USE THEREOF

摘要

The present invention relates to a crosslinking polymer-supported porous film for battery separator, including: a porous film; and a crosslinking polymer supported on the porous film, the crosslinking polymer having a plurality of cation-polymerizable functional groups in the molecule thereof and having oxyalkylene groups represented by general formula (I):
in which the Rs may be the same or different and each independently represent a hydrogen atom or a methyl group, and n represents an integer of 4 to 9, in a side chain thereof..