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芴类偶氮聚炔高分子材料的合成及性能研究
Study on Synthesis and Properties of Fluorene-Azobenzene-Containing Polyacetylenes
【作者】 应加银;
【导师】 聂王焰;
【作者基本信息】 安徽大学 , 高分子化学与物理, 2010, 硕士
【摘要】 目前,偶氮苯聚合物在光信息存储材料、非线性光学材料、液晶材料、生物活性光控制及纳米材料等领域都有重要的应用价值。偶氮型聚合物正成为功能高分子材料的一前沿课题,展现出广泛的应用前景,特别是在光致变色方面的应用。鉴于偶氮苯聚合物的重要研究应用,本文合成了四种新型的端炔基含芴偶氮苯衍生物小分子和三个含芴偶氮苯聚炔高分子,对其结构进行了表征,并对它们光学性能及热性能进行了研究。论文的主要工作如下:1.简要综述了聚炔及其衍生物、偶氮苯聚合物、芴类衍生物的研究进展。2.设计并合成了四个新的目标单体分子。并且利用FTIR和1H NMR对化合物的结构进行了确定和表征。3.选择3个单体以均聚方式在[Rh(nbd)Cl]2-Et3N催化下成功地合成了含芴偶氮苯聚炔共轭高分子,通过红外、核磁对聚合物结构进行了表征。4.对单体和聚合物的紫外吸收光谱进行了研究,发现聚合物的最大吸收峰与单体相比发生了红移,这可能是聚合物主链共轭结构的贡献。5.利用TGA和DSC对单体和聚合物进行了热性能的研究,发现聚合物较单体具有较高的热稳定性。
【Abstract】 At present, the azobenzene polymer are very useful in optical information storage materials, nonlinear optical materials, liquid crystalline materials, bioactive light control and nanomaterials, etc. Azobenzene polymer are becoming a new frontier in functional polymer materials, and show a broad application prospect, especially in the photochromic applications. In view of the significant application of the azobenzene polymer, four new fluorene-type azobenzene with a terminal propargyl functional group small molecule compounds, and three fluorene-type azobenzene polyacetylenes were synthesized and characterized by FT-IR and1H-NMR. Their thermal properties and optical properties were also investigated. The main contents of this thesis include the following points:1. The development of polyacetylenes and their derivatives, azobenzene polymers, and fluorene and its derivatives were reviewed briefly.2. Four new fluorene derivatives were designed and synthesized, and their structures were characterized by FT-IR and1H-NMR.3. Three fluorene-type homopolymer with azobenzene polypropargyl functional group were designed and synthesized using [Rh(nbd)Cl]2-Et3N as catalyst, and their structures were characterized by FT-IR and1H-NMR.4. The UV-vis absorption spectra of the monomers and polymers were studied, and the results showed that the maximum absorption peak of the polymer occurred red shift compared with their monomers, and it probably because the influence of the highly conjugated structure of the polymer.5. The TGA and DSC of the monomer and polymer were investigated. The results showed that the polymer had good thermal stability.
【Key words】 azobenzene; polyacetylene; fluorene; optical property; thermal property;