Synthesis and characterization on semi-aromatic polyamide containing benzoxazole unit
HU Jun1, HE Jin-mei1, GU Hong-bo1, QIU Jian-hui2, HUANG Yu-dong1, SUN De-zhi3
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
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.
Key words: semi-aromatic polyamides benzoxazole synthesis thermal behavior
DOI：10.11916/j.issn.1005-9113.2011.03.018
Clc Number:O633.5
Fund:
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Synthesis and characterization on semi-aromatic polyamide containing benzoxazole unit
本站小编 哈尔滨工业大学/2019-10-23
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