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分子内电荷移动型共轭聚合物的固相法制备及表征
Solid-State Reaction Synthesis and Characterization of Conjugated Polymer with Charge Transferring in Molecule
【摘要】 首次使用固相法制备出了分子内电荷移动型(CT type)共轭聚合物聚(3,6-二噻基-哒嗪)(P(DThPD)),在25℃测得聚合物的特性黏度为0.67 dL/g。并利用核磁共振谱(1H-NMR)、红外光谱(FT-IR)、紫外-可见光谱(UV-vis)、电子扫描显微镜(SEM)、电子透射显微镜(TEM)、元素分析(elemental analysis)、循环伏安(CV)等测试方法对聚合物进行了表征。结果表明,DThPD在研磨过程中在d,d′位置发生了聚合反应,生成了纳米粒子聚合物,并且聚合物具有一定的电化学活性。
【Abstract】 A novel pyridazine derivative 3,6-dithiophenyl-pyridazine has been synthesized by coupling of 3,6-dibromo-pyridazine and 2-(tributylstannyl)-thiophene via Stille reaction.Poly(3,6-dithiophenyl-pyridazine),of which the intrinc viscositic in DMF is 0.67 dL/g at 25 ℃.Charge transfer type(CT type) in molecule conjugated polymer(poly(3,6-dithiophenyl-pyridazine)) was synthesized by one-step solid-state reaction at room temperature.To our knowledge,it’s the first time to prepare pyridazine-based conjugated polymers using this polymerization method by nowadays.The chemical structure of monomer and polymer was verified by 1H-NMR,FT-IR and elemental analysis,and the 1H-NMR and FT-IR.Results show that polymerization is happened at the d,d′-positions of 3,6-dithiophenyl-pyridazine.The optical,microscopy and electrochemistry properties of polymer were also investigated here.The conjugated polymer is a kind of potential functional macromolecule material.
【Key words】 solid-state polymerization; poly(3,6-dithiophenyl-pyridazine); conjugated polymer; tetra(triphenyl-phosphine) palladium;
- 【文献出处】 高分子材料科学与工程 ,Polymer Materials Science & Engineering , 编辑部邮箱 ,2009年03期
- 【分类号】O633.5
- 【被引频次】3
- 【下载频次】106