可溶性含氟聚芳醚酰胺的合成与性能研究

SYNTHESIS AND PROPERTY STUDY OF SOLUBLE FLUORINE-CONTAINING PEA

以自制的高纯二胺单体1，4-双（4-氨基-2-三氟甲基苯氧基）苯与3种商品化二酸单体经缩聚反应制得了一系列新型含氟聚芳醚酰胺（PEA）。该含氟PEA表现出优良的溶解性能，室温下不仅可以溶于，N-甲基-2-吡咯烷酮、N，N-二甲基乙酰胺、N，N-二甲基甲酰胺等强极性溶剂中，而且还可以溶于吡啶、四氢呋喃、环己酮等低沸点溶剂中。由该聚合物所制得的薄膜无色透明，截断波长在334～364nm之间，400nm后具有高度透明性。该含氟PEA还表现出良好的介电性能，介电常数为2．43～2．93（1MHz）。

A series of novel fluorine-containing poly（ aryl ether amides） （PEA） were prepared by the condensation polymerization of high purity diamine monomer 1,4-bis（4-amino-2-trifluoromethyl phenoxy）benzene and three sorts of commercial diacid monomer. The solubility of the series of fluorine-containing PEA was good, they were not only solubilized in some strong polar solvents such as N-methyl-2-pyrrolidinone（NMP） , N, N-dimethylacetamide （ DMAc ） and N, N-dimethylformamide （ DMF ） , but also solubilized in some low-boiling-point solvents such as pyridine, cyclohexanone and tetrahydrofuran at room temperature. The films prepared by the series of PEA were colorless and transparent, their truncation wavelength was 334 - 364 nm and they had high transparent when the wavelength was beyond 400 nm. The dielectric property of PEA was good and the range of dielectric constant was 2.43 - 2.93 （ 1 MHz）.