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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.

以尼龍1010（PA1010）為基體，以聚酯型熱塑性聚氨酯彈性體（TPU）為增韌劑，采用HaakePTW16/25p型雙螺桿擠出機制備了PA1010/TPU共混增韌尼龍材料，測試了PA1010/TPU共混物的表觀粘度、非牛頓指數等流變參數，并重點討論了其流變性能。實驗結果表明：共混物熔體的表觀粘度隨剪切速率的增大而降低，非牛頓指數小于1，符合假塑性流體流動規律。此外共混物的表觀粘度隨著組成和溫度的變化呈現了一種極為特殊的變化行為。即在相同溫度下，共混物的表觀粘度隨著TPU含量增加而增加；在相同組成下，共混物的表觀粘度隨著溫度升高而升高。