Patent ID: 8916672

Claim:
A polyarylene ether polymer comprising a repeat unit represented by the chemical formula (1a) or (1b): wherein at least one of A 1 , A 2 and A 3 are cardo-type aromatic diol monomers selected from the compounds of the chemical formulae (d-2), (d-4), (d-5) and (d-6): B 1 is a non-cardo-type aromatic diol monomer, in the formula (1a), x+y+z=1, 0<x≦1, 0≦y<1 and 0≦z<1, in the formula (1b), x+y=1, 0<x≦1 and 0≦y<1, and n is an integer from 1 to 780.