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- Title
Tailored dielectric and mechanical properties of noncovalently functionalized carbon nanotube/poly(styrene- b-(ethylene- co-butylene)- b-styrene) nanocomposites.
- Authors
Yadav, Santosh Kumar; Mahapatra, Sibdas Singha; Cho, Jae Whan
- Abstract
The preparation of high-dielectric poly(styrene- b-(ethylene- co-butylene)- b-styrene) (SEBS) composites containing functionalized single-walled carbon nanotubes (f-SWCNTs) noncovalently appended with dibutyltindilaurate are reported herein. Transmission electron microscopy and X-ray photoelectron and Raman spectroscopy confirmed the noncovalent functionalization of the SWCNTs. The SEBS-f-SWCNT composites exhibited enhanced mechanical properties as well as a stable and high dielectric constant of approximately 1000 at 1 Hz with rather low dielectric loss at 2 wt% filler content. The significantly enhanced dielectric property originates from the noncovalent functionalization of the SWCNTs that ensures good dispersion of the f-SWCNTs in the polymer matrix. The f-SWCNTs also acted as a reinforcing filler, thereby enhancing the mechanical properties of the composites. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
- Subjects
DIELECTRICS; MECHANICAL behavior of materials; COVALENT bonds; POLYSTYRENE; NANOCOMPOSITE materials; SINGLE walled carbon nanotubes; TRANSMISSION electron microscopy
- Publication
Journal of Applied Polymer Science, 2013, Vol 129, Issue 4, p2305
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.38938