1,4-bis(2′-trifluoromethyl-4′-aminophenoxy)benzene (6FAPB) and 3,3′,4,4′-diphenyl ether tetracarboxylic dianhydride (ODPA) used as raw materials,N,N-dimethylacetamide (DMAc)as the first solvent,acetone as the cosolvent,and six kinds of film-forming solvents having different distribution ratios were prepared,then six kinds of PI films were prepared by thermal imidization.The structure was characterized by fourier transform infrared spectroscopy,and its surface morphology,dissolution time,tensile strength and thermal properties were tested.The results shown that the dissolution time of the film prepared by adding acetone in the solvent had a big difference.
Qin Zhuwei, Yan Zhengxing, Sun Yu, Yin Daxue
. Study on the effect of low boiling cosolvent on PI solubility[J]. New Chemical Materials, 2020
, 48(9)
: 179
-181
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.09.039
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