氯化锌催化合成含硅芳炔树脂

发布时间：2018-06-24 17:07

  本文选题：含硅芳炔树脂 + 单步硅烷化　； 参考：《高分子材料科学与工程》2017年11期

【摘要】：以二乙炔基苯、双(二甲氨基)二甲基硅烷为原料,乙腈为溶剂,通过氯化锌催化实现单步硅烷化合成含硅芳炔树脂。研究结果表明,乙腈做溶剂,二乙炔基苯与双(二甲氨基)二甲基硅烷投料比为9∶8(摩尔比),ZnCl_2相对于炔过量0.65倍,回流反应11h效果最佳,收率高达90%以上;制备的含硅芳炔树脂在室温下呈流动状态,加工性能良好,加工温度为40~180℃,加工窗口为140℃;固化后的含硅芳炔树脂,在N_2气氛下热分解5%时的温度(T_(d5))为587℃。
[Abstract]:The arylene resin containing silicon was synthesized by single step silane reaction with diacetylbenzene, bis (dimethylamino) dimethylsilane as raw material, acetonitrile as solvent and zinc chloride as catalyst. The results showed that when acetonitrile was used as solvent, the molar ratio of diacetylbenzene to bis (dimethylamino) dimethylsilane was 9:8 (molar ratio) 0.65 times than that of excess of acetylene, and the reflux reaction was the best for 11 h, and the yield was over 90%. The arylene resin containing silicon is in a flowing state at room temperature, and its processing property is good. The processing temperature is 40 ~ 180 鈩，

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