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传统的热亚胺化方式会对含氟聚酰亚胺的应用范围造成限制，但低温亚胺化会对其性能造成一定影响。以含氟单体4, 4’-（六氟异丙烯）二酞酸酐（6FDA）和4, 4’-二氨基-2, 2’-双三氟甲基联苯（TFMB）合成聚酰胺酸（PAA），然后分别通过80 ℃/1 h，110 ℃/2 h，150 ℃/2 h，200 ℃/1 h，250 ℃/30 min，300 ℃/30 min梯度升温热亚胺化和加入乙酸酐/吡啶混合液的方式使其亚胺化，制备两种聚酰亚胺（PI）薄膜，对薄膜各项性能进行表征。结果表明：由化学亚胺化制备的薄膜拥有更好的透明性、溶解性和力学性能；而热亚胺化制成的薄膜拥有较小的相对介电常数、较高的热分解温度和更高的亚胺化率。,Thermal imidization restricts the application of fluorinated polyimide, but the low temperature imidization could cause a certain impact on its performance. PAA was synthesized with fluorinated monomer 4, 4’-(six fluoro isopropenyl) phthalic anhydride (6FDA) and 4 4’-, two amino -2, 2’- three fluorine biphenyl (TFMB), and then through gradient heating by 80 ℃/1 h, 110 ℃/2 h, 150 ℃/2 h, 200 ℃/1 h, 250 ℃/30 min, 300 ℃/30 min and adding acetic anhydride /pyridine mixture into PAA, two kinds of PI films were prepared and characterized. The test results show that PI films prepared by chemical imidization has better transparency, solubility and mechanical properties, while the PI films prepared by thermal imidization has smaller relative dielectric constant, and higher initial decomposition temperature and higher imidization rate.