Patent ID: 9048479
Filing Date: 2015-06-02
Classification: C08G,C08J,C08L,H01M,Y02E

Abstract:
1. An electrolyte membrane including a tri-block copolymer, as a polymer electrolyte membrane for fuel cells, having a t-P-N-P-t or t-N-P-N-t molecular structure, wherein t represents an end of a polymer formed by an end-forming monomer, P represents a copolymer block having a hydrophilic group represented by Formula 1 below, and N represents a copolymer block having a hydrophobic group represented by Formula 2 below, wherein the tri-block copolymer has a weight average molecular weight of 100,000 to 1,000,000 g/mol, and wherein A, C and V are each independently at least one selected from the group consisting of: R is —NO U is at least one selected from the group consisting of: X is —SO M is Na or K; B is at least one selected from the group consisting of: W is at least one selected from the group consisting of: x:y is 1000:1 to 5:1, a:b is 1000:1 to 5:1; and 10≦m≦2000 and 5≦n≦800.