聚双(2-吡咯基乙氧基磷腈)的合成、氧化交联和导电性研究

有机 /无机杂化聚磷腈具有优良的加工性能和使用性能 ,可以在许多领域获得应用 1] .具有光电活性的聚磷腈研究也引起了广泛的关注 2～ 4 ] . Allcock等 2 ] 合成了具有离子传导特性的聚磷腈 ,可应用于锂离子电池 .具有非线性光学特性的聚合物也有研究报道 3 ] . L eung等 4 ] 合成了具有电致发光基团的聚磷腈 ,部分聚合物具有蓝光发射的特征 .合成化学键合的聚 (N -烷基 )吡咯通用聚合物复合膜材料已经得到了重视5,6] .本文合成了 2 -吡咯基乙醇 ,将其与反应性无机聚合物聚 (二氯 )磷腈进行高分子取代反应 ,合成了含吡咯侧基的聚磷…

Synthesis of Polybis(2-pyrrolylethoxy)phosphazene and Its Oxidation Crosslinking Reaction and Electroconductivity

Akind of reactive inorganic polymer-poly(dichloro)phosphazene was prepared by ring-opening polymerization at a high temperature.Then a new conductive polyphosphazene containing pyrrole groups was synthesized by nucleophilic reaction between the inorganic polymer and sodium salts of N-hydroxyethylpyrrole.The chemical structure and properties of the polymers were characterized by 1H, 31PNMR, FTIR, DSC, TGA and GPC.The experimental results indicate that the molecular weights of pyrrole-containing soluble polymer are Mn=4.1×105, Mw=9.2×105( Mw/ Mn=2.24) and the Tg is 237 K.Ahigh qulity film was obtained from the soluble polymer through spin-coating method.Using FeCl3as oxidiant, the polymer film underwent crosslinking reaction to form conjugated polypyrrole.After the oxidation reaction, the color of polymer film turned into light black from almost transparent and the conductivity was determined to be 1.7×10-5S/cm, it is 1×105times greater than that of the original film.The crosslinked polymer shows a high thermal stability.