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本文通过对普通聚邻甲苯胺的氧化和还原,首次合成了全氧化型、全还原型及不同氧化程度的聚邻甲苯胺,并用IR,~(13)C-NMR,SEM和元素分析等手段进行了确切表征。结果表明,普通聚邻甲苯胺链中醌亚胺结构单元可被苯肼部分或完全还原为苯二胺结构,制成低氧化程度或全还原型聚合物;碘氧化导致链中醌亚胺单元的增多和苯二胺单元的减少。醌式结构的存在强烈影响聚合物的柔顺性和溶解性,为提高苯胺类聚合物的溶解性可适当降低其醌式含量。
In this paper, the poly-o-toluidine with all-oxidation type, full-reduction type and different oxidation degree was synthesized for the first time by the oxidation and reduction of common poly-o-toluidine. IR, ~ 13 C-NMR and elemental analysis The exact characterization was carried out. The results show that the common poly-o-toluidine chain of quinone imine structural units can be partially or completely reduced by phenylhydrazine phenylenediamine structure, made of low degree of oxidation or fully reduced polymer; iodine oxidation leads to the chain of quinone imine units Increase and decrease of phenylenediamine unit. The existence of quinone structure strongly influences the flexibility and solubility of the polymer, and its quinoid content may be appropriately reduced in order to improve the solubility of the aniline polymer.