含磷超支化聚芳酰胺的合成及对尼龙-6的增韧  

Synthesis of Hyperbranched Polyamide Containing Triphenyl Phosphorus Structure and the Toughening of Nylon-6

作　　者：郝晓鹏[1] 谢嵩[1] 冯厚军[1] 唐旭东[1] 

机构地区：[1]天津科技大学材料科学与化学工程学院,天津300457

出　　处：《天津科技大学学报》2013年第3期29-33,共5页Journal of Tianjin University of Science & Technology

摘　　要：以间苯二甲酰氯(IPC)为A2单体,三(3-氨基苯基)氧化膦(TAPPO)为B3单体,合成了含三苯基磷结构超支化聚芳酰胺(P-HBPA),研究表明合成反应的最佳条件为:n(TAPPO)∶n(IPC)=1.5∶1,反应温度为50,℃,TAPPO反应浓度为0.1,mol/L,反应时间2,h.采用红外光谱、1H,NMR对其结构进行了表征.1H,NMR分析表明含磷超支化聚芳酰胺的支化度为0.36,DSC结果表明其玻璃化转变温度(Tg)为130.7,℃.将P-HBPA与尼龙-6共混改性,当P-HBPA的质量分数为0.5%时,共混物的拉伸强度、断裂伸长率、冲击强度达到最大.Isophthaloyl chloride （IPC）as A2 monomer and tri （3-aminophenyl）phosphine oxide （TAPPO）as B3 monomer, were used to synthesize triphenyl phosphorus structure in hyperbranched polyamide. The study shows the best reaction conditions are： the molar ratio of TAPPO to IPC is 1.5 ： 1, reaction tcmperture is 50℃, TAPPO reaction concentration is 0.1mol/L, and the reaction time is 2 h. The structure of the polymer was characterized by FTIR and IH NMR. 1H NMR analysis showed that the branched degree of phosphorus of hyperbranched polyamide was 0.36, and DSC results show that the glass transition temperature （Tg） is 130.7℃. To modify the blending of P-HBPA and PA 6, when the added content was 0.5%, the tensile strength, elongation at break and impact strength reached the maximum.

关 键 词：超支化聚合物 反应条件 B3+A2反应 支化度 

分 类 号：O631.5[理学—高分子化学]