| abstract |
A multi-block copolymer, a method for producing the same, a polymer electrolyte membrane produced from the multi-block copolymer, a method for producing the same, and a fuel cell comprising the polymer electrolyte membrane are provided. A multi-block copolymer comprising a polysulfone phenylene ether repeating unit, a sulfonated polysulfone phenylene ether repeating unit and a polydialkylsiloxane repeating unit. A polymer electrolyte membrane produced from the multi-block copolymer, a production method thereof, and a fuel cell comprising the polymer electrolyte membrane. [Selection] Figure 4 |