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Synthesis and characterization on semi-aromatic polyamide containing benzoxazole unit

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【Author】 HU Jun 1,HE Jin-mei 1,GU Hong-bo 1,QIU Jian-hui 2,HUANG Yu-dong 1,SUN De-zhi 3(1.School of Chemical Engineering and Technology,Harbin Institute of Technology,Harbin 150001,China;2.Dept.of Machine Intelligence and Systems Engineering,Akita Prefectural University,Akita Honjo 015005,Japan;3.School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China)

【机构】 School of Chemical Engineering and Technology,Harbin Institute of Technology； Dept.of Machine Intelligence and Systems Engineering,Akita Prefectural University； School of Municipal and Environmental Engineering,Harbin Institute of Technology；

【摘要】 In order to obtain a novel polyamide having excellent heat-resistant properties which could be anticipated as a thermal modifier for aliphatic polyamide,a series of new semi-aromatic polyamides (BO6,BO8,BO10) containing benzoxazole unit were synthesized based on 5-amino-2-(p-aminophenyl) benzoxazole (ABO) and aliphatic acids (adipic,suberic and sebacic acid) by means of Yamazaki phosphorylation method.The effect of reaction temperature on the inherent viscosity of the polymers was studied,and the structures of products were characterized by FTIR,1 H-NMR,and the heat resistance of the polymers was studied by DSC and TG.The results showed that the reaction temperature gives the polymers the highest viscosity at around 90 ℃,130 ℃ and 130 ℃ for BO6,BO8 and BO10,respectively.The heat resistance of the new semi-aromatic polyamides is much higher than that of the common aliphatic polyamides.In addition,the products show good solvent resistance and crystallization properties.更多还原

【Abstract】 In order to obtain a novel polyamide having excellent heat-resistant properties which could be anticipated as a thermal modifier for aliphatic polyamide,a series of new semi-aromatic polyamides (BO6,BO8,BO10) containing benzoxazole unit were synthesized based on 5-amino-2-(p-aminophenyl) benzoxazole (ABO) and aliphatic acids (adipic,suberic and sebacic acid) by means of Yamazaki phosphorylation method.The effect of reaction temperature on the inherent viscosity of the polymers was studied,and the structures of products were characterized by FTIR,1 H-NMR,and the heat resistance of the polymers was studied by DSC and TG.The results showed that the reaction temperature gives the polymers the highest viscosity at around 90 ℃,130 ℃ and 130 ℃ for BO6,BO8 and BO10,respectively.The heat resistance of the new semi-aromatic polyamides is much higher than that of the common aliphatic polyamides.In addition,the products show good solvent resistance and crystallization properties.更多还原

【关键词】 semi-aromatic polyamides； benzoxazole； synthesis； thermal behavior；
【Key words】 semi-aromatic polyamides； benzoxazole； synthesis； thermal behavior；

【基金】 Sponsored by the Natural Scientific Research Innovation Foundation in Harbin of Institute of Technology(Grant No. 2008. 05)

【文献出处】 Journal of Harbin Institute of Technology ,哈尔滨工业大学学报(英文版) , 编辑部邮箱 ,2011年03期

【分类号】O633.5
【被引频次】2
【下载频次】72

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