Ionomer Membranes Produced from Hexaarylbenzene-Based Partially Fluorinated Poly(arylene ether) Blends for Proton Exchange Membrane Fuel Cells.

ABSTRACT: In this study, a series of high molecular weight ionomers of hexaarylbenzene- and fluorene-based poly(arylene ether)s were synthesized conveniently through condensation and post-sulfonation modification. The use a of blending method might increase the stacking density of chains and affect the formation both of interchain and intrachain proton transfer clusters. Multiscale phase separation caused by the dissolution and compatibility differences of blend ionomer in high-boiling-point solvents was examined through analysis and simulations. The blend membranes produced in this study exhibited a high proton conductivity of 206.4 mS cm^-1 at 80 °C (increased from 182.6 mS cm^-1 for precursor membranes), excellent thermal resistance (decomposition temperature > 200 °C), and

SUBMITTER: Huang TS 

PROVIDER: S-EPMC9231265 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature