• 文献标题:   Synthesis and characterization of fluorine functionalized graphene oxide dispersed quinoline-based polyimide composites having low-k and UV shielding properties
  • 文献类型:   Article
  • 作  者:   KUMAR S, ARUMUGHAM H, ROY D, KANNAIYAN D
  • 作者关键词:   bis quinoline amine, fluorine functionalized graphene oxide, hydrophobic behavior, low dielectric constant, polyimide matrix composite, thermal stability, uv shielding behavior
  • 出版物名称:   POLYMERS FOR ADVANCED TECHNOLOGIES
  • ISSN:   1042-7147 EI 1099-1581
  • 通讯作者地址:  
  • 被引频次:   8
  • DOI:   10.1002/pat.5527 EA OCT 2021
  • 出版年:   2022

▎ 摘  要

Polyimide nanocomposites having low-k and UV shielding properties have been developed using fluorine functionalized graphene oxide and bis(quinoline amine) based polyimide. The polyimide was synthesized using bis(quinoline amine) and pyromellitic dianhydride at appropriate experimental conditions, and its molecular structure was confirmed through various spectral analysis such as FTIR and NMR. The polyimide (PI) composites were prepared using bis(quinoline amine), pyromellitic dianhydride, and separately filled with 1, 5, 10 wt% of fluorinated graphene oxide (FGO) through in situ polymerization. The polymer composites were characterized using thermo gravimetric analysis (TGA), X-ray powder diffraction (XRD), and scanning electron microscopy (SEM). In addition, the water contact angle, dielectric behavior, and UV-Vis shielding behavior of FGO/PI composites were evaluated. The value of the water contact angle of the polyimide was increased with increment of FGO in the polyimide matrix. The highest water contact angle of polyimide composites observed 108 degrees was obtained for 15 wt% FGO reinforced polyimide composite. The value of the dielectric constant for neat, 1, 5, and 15 wt% FGO reinforced polyimide composites was obtained as 4.5, 3.7, 2.6, and 2.0, respectively. It is also observed from by UV-Vis spectroscopy analysis that the FGO reinforced polyimide composites have good UV shielding behavior.