High temperature constant polyether sulfone / polyether ketone - block copolycondensates

摘要

The block copolycondensates contain from 50 to 98 mol-% of polyether sulphone blocks having a molecular weight Mw in the range from 1500 to 30,000, and from 2 to 50 mol-% of polyether ketone blocks, and, in order to improve the heat resistance, contain block units derived from biphenyl compounds as monomers.