MIXTURE COMPRISING PHOSPHONIC ACID CONTAINING VINYL, POLYMERELECTROLYTE MEMBRANES COMPRISING POLYVINYLPHOSPHONIC ACID AND THE USE THEREOF IN FUEL CELLS

摘要

The invention relates to a proton conducting polymer membrane based on polyvinylphosphonic acid obtained by means of a method comprising the following steps: A) mixing a polymer with phosphonic acid containing vinyl, B) forming a flat structure by using the inventive mixture from step A) on a support, C) polymerisation of the vinylphosphonic acid present in the flat structure according to step B). The inventive membrane can be used in a variety of ways on account of the excellent chemical and thermal properties thereof and is particularly suitable for use as a polymer-electrolyte-membrane (PEM) in PEM-fuel cells.