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http://dx.doi.org/10.5714/CL.2013.14.4.251

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)
Publication Information
Carbon letters / v.14, no.4, 2013 , pp. 251-254 More about this Journal
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
fourier transform-infrared spectroscopy; polybenzoxazole; reduced graphene oxide; composite; electrical conductivity;
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