含磷超支化聚酰胺的合成与表征

摘要

以三苯基氧化膦为原料，通过硝化反应、还原反应，合成 B3型单体三(3–氨基苯基)氧化膦(TAPPO)。以己二酸为A2单体，利用A2+B3溶液聚合的方法，制备具有超支化结构的聚酰胺。研究反应条件对聚合物特性黏度的影响；利用傅里叶变换红外光谱(FTIR)、核磁共振谱(NMR)对含磷超支化聚酰胺进行结构表征；利用差示扫描量热法(DSC)、热重分析(TGA)测定超支化聚酰胺的热性能。%With triphenylphosphine oxide as a raw material,tri(3-aminophenyl)phosphine oxide was synthesized through nitration and reduction reaction. Novel phosphorus-contained hyperbranched polyamides were prepared from tri(3-aminophenyl)phosphine oxide(B3)and hexanedioic acid(A2)via A2+B3 solution polymerization. The effects of reaction conditions on the intrinsic viscosity of the hyperbranched polyamides were investigated. The structures of polymerization products were characterized with FTIR and NMR. Their thermal behaviors were measured with differential scanning calo-rimetry(DSC)and thermogravimetric analysis(TGA).