A Facile Route to Synthesize Nanographene Reinforced PBO Composites Fiber via in Situ Polymerization

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  • Mingqiang Wang, Harbin Institute of Technology
  • ,
  • Shuai Zhang
  • ,
  • Jidong Dong, Harbin Institute of Technology
  • ,
  • Yuanjun Song, Harbin Institute of Technology
  • ,
  • Jiao Mao, Harbin Institute of Technology
  • ,
  • Huaquan Xie, Harbin Institute of Technology
  • ,
  • Yue Qian, Harbin Institute of Technology
  • ,
  • Yudong Huang, Harbin Institute of Technology
  • ,
  • Zaixing Jiang, Harbin Institute of Technology

The polymer matrix with introduced carbon-based nanofiber displays fascinating properties. They have inspired extensive research on the synthesis of polymer composites, which have been applied in catalysis, electronics, and energy storage. In this report, we reported a facile and efficient method to prepare poly(p-phenylene benzobisoxazole) (PBO)/nanographene (PNG) composites fibers via in-situ polymerization, accompanied by the reduction from (nanographene oxide) NGO to (nanographene) NG. By tuning the ratio of feeding PBO monomer to NGO, various composites fibers with 0.1-1 wt % contents of NG were obtained. The efficient PBO chains grafting made NG uniformly disperse in the PBO matrix, and it also increased the uniformity of the packing orientation of PBO chains. Consequently, the tensile strength, tensile modulus, and thermal stability of the obtained PNG composites fibers had been improved significantly. In addition, the composites fibers with 0.5 wt % NG exhibited a 25% increment in tensile strength, and a 41% enhancement in tensile modulus compared with neat PBO fibers. It reveals an excellent reinforcement to PBO composites fibers with NG.

Original languageEnglish
Article number251
Number of pages10
Publication statusPublished - 4 Jul 2016

    Research areas

  • nanographene, poly(p-phenylene benzobisoxazole) fiber (PBO fiber), polymer composites, conjugated polymer, BENZOBISOXAZOLE) COPOLYMER FIBERS, WALLED CARBON NANOTUBES, POLY(P-PHENYLENE BENZOBISOXAZOLE), GRAPHENE OXIDE

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