| abstract |
A monomer of formula (I) may be used to prepare a poly(arylene ether) of formula (II) wherein k is 1 or 2, n is a non-zero number from 0 to 1, j is 0, 1 or 2, Q is O or S, L is a leaving group, Z is F or CI, Z' is F, CI or an organic group, and R is hydrogen or an organic moiety. Such poly(arylene ether)s are useful as membrane materials, for example for gas separation, water desalination, and proton exchange membranes in fuel cells. |