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Synthesis and properties of polyether with short alternating conjugated and nonconjugated blocks containing oxadiazole units

机译:含恶二唑单元的短交替共轭和非共轭嵌段聚醚的合成与性能

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摘要

Apolyether,poly[(2,5-dimethylene-1,3,4-oxadiazole)dioxy-1,4-phenylene-1,2- ethenylene-1,4-phenylene- 1,2-ethenylene-1,4-phenylene], based on short alternating conjugated oxadiazole units, has been synthesized, which is a kind of PPV derivative that emits blue light. The resulting polymer is fairly soluble in chloroform. The synthesized polymer shows a UV-visible absorbency maximum wavelength around 310 nm in solution. The photoluminescence maximum wavelength for the resulting polymer appears around 470 nm. The polymer also exhibits good thermal stability up to 300 degreesC under N-2 atmosphere. It is also observed that the onset temperature of thermal decomposition is as high as 355 degreesC. (C) 2002 Wiley Periodicals, Inc. [References: 17]
机译:聚醚,聚[(2,5-二亚甲基-1,3,4-恶二唑)二氧基-1,4-亚苯基-1,2-亚乙基-1,4-亚苯基-1,2-亚乙基-1,4-亚苯基合成了基于短交替共轭恶二唑单元的[],它是一种发出蓝光的PPV衍生物。所得聚合物相当溶于氯仿。合成的聚合物在溶液中显示约310 nm的最大紫外可见吸收率。所得聚合物的光致发光最大波长出现在约470nm处。在N-2气氛下,该聚合物在高达300摄氏度的温度下也表现出良好的热稳定性。还观察到热分解的起始温度高达355℃。 (C)2002 Wiley Periodicals,Inc. [参考:17]

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