芴基聚三唑高分子的点击制备及热性能  

Preparation and Thermal Properties of Fluorene-Based Polytriazole

作　　者：秦晓云[1] 孙重阳[1] 光善仪[1] 徐洪耀[1] 

机构地区：[1]东华大学材料科学与工程学院。纤维材料改性国家重点实验室,上海201620

出　　处：《高分子材料科学与工程》2012年第4期31-34,38,共5页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(51073031,20974018,20971021)

摘　　要：文中采用"点击化学"方法制备了三种芴基聚三唑高分子,并用红外光谱(IR)、核磁共振(1H-NMR)和热重分析(TGA)对其结构和热性能进行了研究。结果表明,利用"点击化学"成功有效地合成出了功能聚三唑高分子,该方法不仅简单易操作,反应条件温和,而且产率高;通过分子设计,合成的芴基聚三唑高分子的分子量可高达8.4×104,主链中柔性链的引入有利于分子量的提高;该类高分子均具有很好的热稳定性,热分解温度达367℃。＂Click＂ chemistry has attracted great attetion since its discovery,due to its high yield,technical simplicity of the reaction and post-processing.In this paper,three kinds of fluorene-based polytriazole were prepared by ＂click＂ chemistry,and were characterized by means of infrared spectrum（IR） and 1H nuclear magnetic resonance spectrum（1H-NMR）,the thermal stabilities of the polymers were studied by thermogravimetry analysis（TGA）.The results show that the functionalized polytriazole polymers are successfully synthesized using the ＂click＂ chemistry strategy.The method possesses the advantages of simple operation and mild reaction conditions,and also high yield.The molecular weight of polymer reaches up to 8.4×104 by molecular design.The investigation of relationship between molecular structure and their properties exhibits that the introduction of flexible unit in molecular main chain is in favour of the increase of molecular weight.Simultaneously,their thermal properties were investigated.The results display these fluorene-based polytriazoles exhibit high thermostability and the thermal decomposition temperature（loss 5%） reaches up to 367 ℃.

关 键 词：点击化学 聚三唑 热稳定性 

分 类 号：TB381[一般工业技术—材料科学与工程]