Carbon letters

Korean Carbon Society (한국탄소학회)
권호 표지
DOI QR코드

DOI QR Code

Synthesis and characterization of polybenzoxazole/graphene oxide composites via in situ polymerization

  • Lim, Jun (Carbon Convergence Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology) ;
  • Kim, Min-Cheol (Department of Chemistry, Chosun University) ;
  • Goh, Munju (Carbon Convergence Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology) ;
  • Yeo, Hyeounk (Carbon Convergence Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology) ;
  • Shin, Dong Geun (Carbon Convergence Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology) ;
  • Ku, Bon-Cheol (Carbon Convergence Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology) ;
  • You, Nam-Ho (Carbon Convergence Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology)
  • Received : 2013.09.01
  • Accepted : 2013.10.05
  • Published : 2013.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, poly(amic acid) was prepared via a polycondensation reaction of 3,3'-dihydroxybenzidine and pyromellitic dianhydride in an N-methyl-2-pyrrolidone solution; reduced graphene oxide/polybenzoxazole (r-GO/PBO) composite films, which significantly increased the electrical conductivity, were successfully fabricated. GO was prepared from graphite using Brodie's method. The GO was used as nanofillers for the preparation of r-GO/PBO composites through an in situ polymerization. The addition of 50 wt% GO led to a significant increase in the electrical conductivity of the composite films by more than sixteen orders of magnitude compared with that of pure PBO films as a result of the electrical percolation networks in the r-GO during the thermal treatment at various temperatures within the films.

Keywords

References

  1. Yokota R, Horiuchi R, Kochi M, Soma H, Mita I. High strength and high modulus aromatic polyimide/polyimide molecular composite films. J Polym Sci C, 26, 215 (1988). http://dx.doi.org/10.1002/pol.1988.140260501.
  2. Ueda M, Nakayama T. A new negative-type photosensitive polyimide based on poly(hydroxyimide), a cross-linker, and a photoacid generator. Macromolecules, 29, 6427 (1996). http://dx.doi.org/10.1021/ma9605560.
  3. Tokoh A. Photosensitive Polymers, Kansai Research Institute, Japan, 84 (1999).
  4. Dai L, Mau AWH. Controlled synthesis and modification of carbon nanotubes and $C_{60}$: carbon nanostructures for advanced polymeric composite materials. Adv Mater, 13, 899 (2001). http://dx.doi.org/10.1002/1521-4095(200107)13:12/13<899::AID-ADMA899>3.0.CO;2-G.
  5. Kitagawa T, Ishitobi M, Yabuki K. An analysis of deformation process on poly-p-phenylenebenzobisoxazole fiber and a structural study of the new high-modulus type PBO HM+ fiber. J Polym Sci B, 38, 1605 (2000). http://dx.doi.org/10.1002/(SICI)1099-0488(20000615)38:12<1605::AID-POLB50>3.0.CO;2-Z.
  6. Novoselov KS, Geim AK, Morozov SV, Jiang D, Katsnelson MI, Grigorieva IV, Dubonos SV, Firsov AA. Two-dimensional gas of massless Dirac fermions in graphene. Nature, 438, 197 (2005). http://dx.doi.org/10.1038/nature04233.
  7. Castro Neto AH, Guinea F, Peres NMR, Novoselov KS, Geim AK. The electronic properties of graphene. Rev Mod Phys, 81, 109 (2009). http://dx.doi.org/10.1103/RevModPhys.81.109.
  8. Lee S, Kim YJ, Kim DH, Ku BC, Joh HI. Synthesis and properties of thermally reduced graphene oxide/polyacrylonitrile composites. J Phys Chem Solids, 73, 741 (2012). http://dx.doi.org/10.1016/j.jpcs.2012.01.015.
  9. Compton OC, Nguyen ST. Graphene oxide, highly reduced graphene oxide, and graphene: versatile building blocks for carbonbased materials. Small, 6, 711 (2010). http://dx.doi.org/10.1002/smll.200901934.
  10. Cai W, Piner RD, Stadermann FJ, Park S, Shaibat MA, Ishii Y, Yang D, Velamakanni A, An SJ, Stoller M, An J, Chen D, Ruoff RS. Synthesis and solid-state NMR structural characterization of $^{13}C$-labeled graphite oxide. Science, 321, 1815 (2008). http://dx.doi.org/10.1126/science.1162369.
  11. Lerf A, He H, Forster M, Klinowski J. Structure of graphite oxide revisited. J Phys Chem B, 102, 4477 (1998). http://dx.doi.org/10.1021/jp9731821.
  12. Luong ND, Hippi U, Korhonen JT, Soininen AJ, Ruokolainen J, Johansson LS, Nam JD, Sinh LH, Seppala J. Enhanced mechanical and electrical properties of polyimide film by graphene sheets via in situ polymerization. Polymer, 52, 5237 (2011). http://dx.doi.org/10.1016/j.polymer.2011.09.033.
  13. Park OK, Hwang JY, Goh M, Lee JH, Ku BC, You NH. Mechanically strong and multifunctional polyimide nanocomposites using amimophenyl functionalized graphene nanosheets. Macromolecules, 46, 3505 (2013). http://dx.doi.org/10.1021/ma400185j.
  14. Chang JH, Park KM, Lee SM, Oh JB. Two-step thermal conversion from poly(amic acid) to polybenzoxazole via polyimide: Their thermal and mechanical properties. J Polym Sci B, 38, 2537 (2000). http://dx.doi.org/10.1002/1099-0488(20001001)38:19<2537::AID-POLB50>3.0.CO;2-V.