To provide a polymer having high molecular weight, softening temperature and ion exchange capacity, to provide a method for producing the polymer with high productivity, to provide an electrolyte membrane having high mechanical strength even at high temperature and high proton conductivity and to provide a membrane electrode assembly having excellent output characteristics and suitable for high temperature operation.
A polymer obtained by a method including a step of polymerizing at least one of a compound (m1) and a compound (m2) and tetrafluoroethylene by using di-tertiary butyl peroxide at 100 to 200°C is used for the electrolyte membrane 15 and the like, wherein Q
COPYRIGHT: (C)2010,JPO&INPIT
Junichi Tayanagi
| JP53082713A | ||||
| JP2006131846A |
| WO2007013533A1 | ||||
| WO2007013532A1 | ||||
| WO2008050692A1 | ||||
| US20050037265 |
Masatake Shiga
Suzuki Mitsuyoshi
Noriko Yanai