首页> 中文期刊>青岛科技大学学报(自然科学版) >苯氧基改性聚氨基环三磷腈的制备及其性能

苯氧基改性聚氨基环三磷腈的制备及其性能

     

摘要

以苯酚、六氯环三磷腈(TCP)和氨为原料,通过苯酚和TCP缩合,再氨化,最后缩聚制得了苯氧基改性聚氨基环三磷腈.结果表明:TCP与苯酚缩合的较佳条件与两者的量的比有关:当n(TCP):n(苯酚):n(KOH)=1:1.1:1.3时,缩合温度为85℃,缩合时间为5 h;当n(TCP):n(苯酚):n(KOH)=1:2.2:2.6时,缩合温度为95℃,缩合时间为7 h.缩聚的较佳条件是:聚合温度为180℃,聚合时间为15 min.通过苯氧基改性,明显提高了产品的磷收率,降低了产品的吸湿性和水溶性,改善了产品的热稳定性.%Polyaminocyclotriphosphazene modified with phenoxy was synthesized by the con-densation of hexachlorocyclotriphosphazene (TCP) and phenol ,then ammoniation with am-monia ,final polycondensation .The results showed that the optimum conditions of the con-densation were associated with the molar ratio of TCP and phenol :When n(TCP): n(phe-nol): n(KOH)=1:1.1:1.3 ,reaction temperature being 85 ℃ ,reaction time being 5 h , but when n(TCP): n(phenol): n(KOH)=1:2.2:2.6 ,reaction temperature being 85 ℃ , reaction time being 5 h .The optimum conditions of polycondensation were as follows :reac-tion temperature being 180 ℃ ,reaction time being 15 min .T he recovery and thermal stabili-ty of the product were significantly improved ,and the moisture absorption and water-solubil-ity were reduced by phenoxy modification .

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