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Synthesis and photoluminescent properties of poly(aryl ether)s containing alternate emitting and electron-transporting moieties

机译:含交替发射和电子传输部分的聚(芳基醚)的合成和光致发光性能

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A new diphenylbutadiene-containing bisphenol was successfully synthesized from benzylideneaniline and 4-propenylanisole via an anil synthetic method. A series of copoly(arylene ether)s consisting of an alternate isolated blue chromophore (diphenylbutadiene) and an electron-transporting moiety (1,3,4-oxadiazole) was synthesized and characterized. High molecular weight copoly(arylene ether)s with an inherent viscosity of >0.5 dL/g were prepared by the nucleophilic displacement reaction of oxadiazole-activated bis-fluorocompounds with bisphenols. Introduction of ether linkages into the copolymers led to an enhanced solubility in organic solvents such as N,N-di-methylacetamide (DMAc) and N-methyl-2-pyrrolidinone (NMP). The resulting copolymers can be cast into tough and transparent films. The copolymers were amorphous in structure with high glass transition temperatures ranging from 182.29 to 194.50degreesC. They also exhibited good thermal stability with the maximum decomposition temperatures higher than 500degreesC in nitrogen. The absorption peaks of these copolymers in thin films varied from 375 to 391 nm, while the photoluminescent peaks varied from 410 to 433 mn. (C) 2003 Wiley Periodicals, Inc. [References: 24]
机译:通过苯胺合成方法,由亚苄基苯胺和4-丙烯基苯甲醚成功合成了一种新的含二苯丁二烯的双酚。合成并表征了一系列由交替的孤立的蓝色生色团(二苯基丁二烯)和一个电子传输部分(1,3,4-恶二唑)组成的一系列共聚(亚芳基醚)。通过恶二唑活化的双氟化合物与双酚的亲核取代反应制备了固有粘度> 0.5 dL / g的高分子量共聚(亚芳基醚)。将醚键引入共聚物中导致在有机溶剂(例如N,N-二甲基乙酰胺(DMAc)和N-甲基-2-吡咯烷酮(NMP))中的溶解度提高。可以将所得共聚物浇铸成坚韧透明的薄膜。该共聚物为无定形结构,玻璃化转变温度为182.29至194.50℃。它们还具有良好的热稳定性,在氮气中的最高分解温度高于500摄氏度。这些共聚物在薄膜中的吸收峰在375至391 nm之间变化,而光致发光峰在410至433 mn之间变化。 (C)2003 Wiley Periodicals,Inc. [参考:24]

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