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由五氟苯肼和2-(4-羟基苯甲酰)苯甲酸制备了AB-型双官能团单体4-(4-羟基苯基)-2-五氟苯基-二氮杂萘酮,以苯做带水剂,在K2CO3的催化下温和的反应条件下通过自身亲核缩聚反应合成了结构规整的氟化聚二氮杂萘酮芳醚材料.用傅里叶衰减全反射红外光谱(FTIR ATR)、氢谱(1H-NMR)、氟谱(19F-NMR)对材料的结构进行了表征.该聚合物的玻璃化转变温度Tg为316℃,Td,5 wt%为491℃,具有良好的热性能;该聚合物薄膜样品测试结果表明该材料具有高的力学性能和绝缘性,拉伸强度超过了60 MPa,表面电阻率为1.8×1015Ω/m2,体积电阻率为5.6×1012Ω/m3;该聚合物在DMAc,DMF,DMSO,NMP,1,1,2,2-四氯乙烷,四氢呋喃,氯仿,吡啶和环丁砜中有良好的溶解性,可加工得到光滑、硬韧的膜;利用表面接触角测定仪考察了不同溶剂体系所得膜材料的表面性能,用DMAc制备膜的接触角为93.3°,用氯仿制备膜的接触角为92.5°,用THF制备膜的接触角为127.1°,接触角大于聚四氟乙烯(112°),且所有考察溶剂中所得膜的接触角都大于90°,具有较好的憎水性.
The AB-type bifunctional monomer 4- (4-hydroxyphenyl) -2-pentafluorophenyl-phthalazinone was prepared from pentafluorophenylhydrazine and 2- (4-hydroxybenzoyl) With benzene as water-carrying agent, the structured fluorinated phthalazinone aryl ether material was synthesized by its own nucleophilic polycondensation reaction under the mild reaction conditions catalyzed by K2CO3. The Fourier transform infrared spectroscopy The structure of the material was characterized by FTIR, 1H-NMR and 19F-NMR. The glass transition temperature Tg of this polymer was 316 ℃, Td was 5 wt% Good thermal properties; the polymer film samples test results show that the material has high mechanical properties and insulation, tensile strength exceeds 60 MPa, the surface resistivity of 1.8 × 1015Ω / m2, the volume resistivity of 5.6 × 1012Ω / m3. The polymer has good solubility in DMAc, DMF, DMSO, NMP, 1,1,2,2-tetrachloroethane, tetrahydrofuran, chloroform, pyridine and sulfolane and can be processed to obtain a smooth and tough film ; Surface contact angle analyzer was used to investigate the surface properties of the membrane materials obtained from different solvent systems. The contact angle of the membrane prepared with DMAc was 93.3 °. The contact angle of the membrane prepared with chloroform was 92.5 °. T The contact angle of HF was 127.1 °, and the contact angle was larger than that of Teflon (112 °). The contact angles of the films obtained from all the investigated solvents were all greater than 90 °, which showed good hydrophobicity.