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A growing number of alternative proton exchange membrane (PEM) research efforts involve multiblock copolymer chemistries, but little emphasis is placed on the methods used to couple the oligomers. Fluorinated linkage groups can help increase block efficiency during coupling, but their effect on a PEM is not well known. The choice of linkage type, hexafluorobenzene (HFB) vs. decafluorobiphenyl (DFBP),...
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