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Synthesis and characterization of polybenzoxazole/graphene oxide composites via in situ polymerization
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  • Journal title : Carbon letters
  • Volume 14, Issue 4,  2013, pp.251-254
  • Publisher : Korean Carbon Society
  • DOI : 10.5714/CL.2013.14.4.251
 Title & Authors
Synthesis and characterization of polybenzoxazole/graphene oxide composites via in situ polymerization
Lim, Jun; Kim, Min-Cheol; Goh, Munju; Yeo, Hyeounk; Shin, Dong Geun; Ku, Bon-Cheol; You, Nam-Ho;
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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.
fourier transform-infrared spectroscopy;polybenzoxazole;reduced graphene oxide;composite;electrical conductivity;
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