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首页> 外文期刊>Journal of Applied Polymer Science >Processable high T_g high strength fluorinated new poly(arylene ether)s containing imido aryl group
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Processable high T_g high strength fluorinated new poly(arylene ether)s containing imido aryl group

机译：含亚氨基芳基的可加工高T_g高强度氟化新型聚（亚芳基醚）

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摘要

A series of poly(arylene ether)s (7a-7f) were successfully synthesized by aromatic nucleophilic substitution reactions of imidoaryl biphenol (5), 4,9-bis-(4-hydroxy-phenyl)-2-phenyl-benzo[f]isoindole-1,3-dione with six different trifluoromethyl substituted bisfluoro monomers (6a-6f). The weight-average molar masses of the polymers were up to 280 kD as measured by GPC. These poly(arylene ether)s exhibited glass transition temperatures up to 361°C in DSC. These polymers showed very high thermal stability up to 558°C for 10% weight loss under synthetic air in TGA. Except 7d-7f, remaining polymers 7a-7c were soluble in a wide range of organic solvents. Transparent thin films of these polymers cast from DCM or NMP exhibited tensile strengths up to 75 MPa and elongation at break up to 41% depending on their exact repeating unit structures. These poly(arylene ether)s showed cut-off wavelength in between 400 and 450 nm except 7d and water absorption were in the range of 0.4 to 0.6%.
机译：通过亚氨基芳基双酚（5），4,9-双-（4-羟基-苯基）-2-苯基-苯并[f]的芳族亲核取代反应成功合成了一系列聚（亚芳基醚）（7a-7f） ]异吲哚-1,3-二酮与六种不同的三氟甲基取代的双氟单体（6a-6f）。通过GPC测量，聚合物的重均摩尔质量高达280kD。这些聚（亚芳基醚）在DSC中的玻璃化转变温度高达361℃。在TGA中合成空气下，这些聚合物在高达558°C的温度下表现出非常高的热稳定性，重量损失为10％。除7d-7f外，其余聚合物7a-7c可溶于多种有机溶剂。这些由DCM或NMP浇铸的聚合物的透明薄膜根据其确切的重复单元结构显示出高达75 MPa的拉伸强度和高达41％的断裂伸长率。这些聚（亚芳基醚）的截止波长在400至450nm之间，除了7d以外，吸水率在0.4至0.6％的范围内。

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