| 摘要 |
Novel polyethers The invention relates to polyarylene ethers which, relative to the total amount of the structural elements present in the polyether resin, contain 10-90 mol % of a recurring structural element of the formula I (I) and 10-90 mol % of a recurring structural element of the formula II (II) in which X and X' independendy of one another are -SO-, -SO2- or -CO-, R1, R2, R3 and R4 independently of one another are hydrogen or C1-C4alkyl and A is an aromatic radical. These industrial materials are distinguished by very good mechanical and thermalproperties.
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