| 摘要 |
Polyarylene ethers which contain, based on the total amount of structural units present in the polyether resin, 10-100 mol % of a recurring structural unit of the formula I <IMAGE> 0-50 mol % of a recurring structural unit of the formula II <IMAGE> 0-90 mol % of a recurring structural unit of the formula III [O-A"-O-A] and 0-50 mol % of a recurring structural unit of the formula IV [O-A"-O-A'] in which A is a group of the formula Va or Vb <IMAGE> where X is -CO-, a is 0, 1 or 2, and b is 2 or 3, and furthermore A' is a group of the formula VIa or VIb <IMAGE> where Y is -SO- or -SO2-, c is 0 or 1, and d is 2, and A" is a group of the formulae VIIa to VIIe <IMAGE> where Z is a direct bond, -C(CH3)2-, -C(CF3)2-, -S-, -SO-, -SO2-, -O- or -CO-. These technical materials have very good mechanical and thermal properties. |
