一种新型耐高温聚酰亚胺低聚物的研究

Study on a novel resistant high-temperature polyimide oligomers

由顺丁烯二酸酐和呋喃在无水乙醚中反应得到3,6-环氧-1,2,3,6-四氢邻苯二甲酸酐,以此作为封端剂合成链节数为1,2,3的聚酰亚胺低聚物。产物结构通过FT-IR和1H-NMR进行表征,并经过DSC和TGA检测了产物的耐热性能。

3,6-epoxy-1, 2,3,6-tetrahydrophthalic anhydride was prepared by reacting maleic anhydride with furan in anhydrous ether, which was subsequently acting as the endcapping agent for the synthesis of a series of polyimide oligomers with different chain length. Structure of polyimide oligomers was characterized by FT-IR and 1HNMR and their thermal stability was detected by DSC and TGA.