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Synthesis and Characterization of Poly(2,5-benzimidazole) (ABPBI) Grafted Carbon Nanotubes

Published online by Cambridge University Press:  31 January 2011

Ji-Ye Kang ,
Su-Mi Eo ,
Loon-Seng Tan  and
Jong-Beom Baek
Ji-Ye Kang
Affiliation:
jykang@unist.ac.kr
Su-Mi Eo
Affiliation:
eosu82@hanmail.net, Ulsan National Institute of Science and Technology, School of Energy Engineering, Ulsan metropolitan city, Korea, Republic of
Jong-Beom Baek
Affiliation:
jbbaek@unist.ac.kr, Ulsan National Institute of Science and Technology, 1School of Energy Engineering, Ulsan metropolitan city, Korea, Republic of
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Abstract

Single-walled carbon nanotube (SWCNT) and multi-walled carbon nanotube (MWCNT) were functionalized with 3,4-diaminobenzoic acid via “direct” Friedel-Crafts acylation reaction in PPA/P2O5 to afford ortho-diamino-functionalized SWCNT (DIF-SWCNT) and MWCNT (DIF-MWCNT). The resultant DIF-SWCNT and DIF-MWCNT showed improved solubility and dispersibility. To improve interfacial adhesion between CNT and polymer matrix, the grafting of ABPBI onto the surface of DIF-SWCNT (10 wt%) or DIF-MWCNT (10 wt%) was conducted by simple in-situ polymerization of AB monomer, 3,4-diaminobenzoic acid dihydrochloride, in PPA. The resultant ABPBI-g-MWCNT and ABPBI-g-SWCNT showed improved the mechanical and electrical properties.

Keywords

compositenanostructurepolymer
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1240: Symposium WW – Polymer Nanofibers–Fundamental Studies and Emerging Applications , 2009 , 1240-WW09-02
Copyright
Copyright © Materials Research Society 2010

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