A kind of high Fluorine-containing poly (aryl ether) without side reaction was synthesized in a two-step synthesis. Its structure was confirmed by FTIR, 1H NMR and 19F NMR. The polymer show s an excellent thermal stability, good solubility, low water absorption, low dielectric constant and low refractive index. Flexible and transparant thin film can be easily ob tained by compression moulding or solution casting. The polymer would be a promising material used for microelectronics and waveguide devices.

以尼龙1010（PA1010）为基体，以聚酯型热塑性聚氨酯弹性体（TPU）为增韧剂，采用HaakePTW16/25p型双螺杆挤出机制备了PA1010/TPU共混增韧尼龙材料，测试了PA1010/TPU共混物的表观粘度、非牛顿指数等流变参数，并重点讨论了其流变性能。实验结果表明：共混物熔体的表观粘度随剪切速率的增大而降低，非牛顿指数小于1，符合假塑性流体流动规律。此外共混物的表观粘度随着组成和温度的变化呈现了一种极为特殊的变化行为。即在相同温度下，共混物的表观粘度随着TPU含量增加而增加；在相同组成下，共混物的表观粘度随着温度升高而升高。