Block copolymer is becoming one of the most promising candidates for proton exchange membranes applications owing to two distinguish advantages. Microphase separation of block copolymers easily occur to form proton conductivity channel due to thermodynamic incompatibility between their own blocks
and an abundant topologies of block copolymers could be synthesized through controlled living polymerization. This review briefly introduce the microphase separation thermodynamics theories of block copolymers
and analyze the various factors influencing the microphase separation of block copolymers
including sulfonation degree
copolymers topologies
block length
block sequence distribution
micro-aggregated structure and the surface morphology. Finally
the future research tendency in these fields is also prospected.