N-丁基吡咯与对苯二胺交替共聚物的合成与表征  

Synthesis and Characterization of Alternating Copolymers Consisting of N-(nButy1)Pyrrole and p-Phenylenediamine

作　　者：李娟娟[1] 石伟[1] 张建平[1] 司马义·努尔拉[1] 

机构地区：[1]新疆大学化学化工学院,石油天然气教育部重点实验室,新疆乌鲁木齐830046

出　　处：《高分子材料科学与工程》2011年第11期45-48,52,共5页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(20974092)

摘　　要：以N,N′-二氯对苯醌二亚胺、N,N′-二氯-2,5-二甲基对苯醌二亚胺与N-丁基-2,5-二溴吡咯的格氏试剂通过二价镍配合物催化法合成了相应的交替共聚物,PNBuPAN和PNBuPDMAN,上述两种聚合物的产率分别为56.8%,52.6%。利用红外光谱、紫外-可见吸收光谱、循环伏安、凝胶色谱(GPC)等对所得聚合物的基本性能和分子量等进行了表征。聚合物在二甲基甲酰胺中的紫外-可见最大吸收波长分别在451 nm和455 nm处出现。所得聚合物在本征态时基本为绝缘体,而经碘掺杂后则具有了一定的电导率,分别为1.51×10-6S/cm和3.89×10-6S/cm。通过电化学测试得知经碘掺杂以后两种聚合物的电化学活性均有明显的提高。Using Ni（Ⅱ） complexes catalyzed method,two types of alternating polymers,which coupled separately by N,N′-dichloro-benzoquinonediimine and 2,5-dimethylN,N′-dichloro-benzoquinonediimine with Grignard reagents of N-（n-butyl）-2,5-dibromopyrrole,PNBuPAN and PNBuPDMAN,were successfully obtained.The yields of the above-mentioned copolymers were 56.8% and 52.6%,respectively.The basic properties and the molecular weights of the obtained copolymers were characterized by Fourier transform infrared spectrum（FT-IR）,UV-Vis absorption, cyclic voltammetry and gel permeation chromatography（GPC） analyses.The absorption maxima of PNBuPAN and PNBuPDMAN appeared at 451 nm and 455 nm in N,N-dimethyllformamide（DMF）,respectively.These two polymers were almost insulators in their eigenstate.After doped by iodine,the copolymers have certain conductivity, with 1.51×10-6S/cm for PNBuPAN and 3.89×10-6 S/cm for PNBuPDMAN,respectively.The electrochemical activity of iodine-doped polymers also is greatly improved as compared to the un-doped precursors.

关 键 词：对苯二胺 吡咯 镍(Ⅱ)催化 格氏试剂 共聚 碘掺杂 

分 类 号：TQ316.342[化学工程—高聚物工业]