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Colloid and Polymer Science

, Volume 294, Issue 10, pp 1599–1610 | Cite as

Polymer brush synthesis on surface modified carbon nanotubes via in situ emulsion polymerization

  • Miftah U. Khan
  • Kakarla Raghava Reddy
  • Theedanai Snguanwongchai
  • Enamul Haque
  • Vincent G. Gomes
Original Contribution

Abstract

In situ emulsion polymerization was employed for synthesizing carbon nanotube (CNT) composites in a colloidal system with poly(styrene) or PS to form nanostructured brush. CNTs were initially functionalized with oleic acid, followed by silanization with (3-aminopropyl) triethoxysilane to impart cross-linking properties. Styrene monomers were efficiently grafted to surface modified CNT via emulsion polymerization with variable CNT concentrations. FTIR analyses of the functionalized CNT and PS/CNT composites confirmed the bond formation and effectiveness of the developed experimental method. X-ray photoelectron spectroscopy confirmed the presence of the desired bonds and the composition of the composites. Structural properties of the composites characterized by TEM confirmed excellent deagglomeration and dispersion of CNTs in PS/CNT composite. Thermal characteristics from TGA and DSC data showed enhanced properties for the nanocomposites as a function of the CNT content. BET measurements indicated significant improvements in surface area and pore volume with enhancements in gas sorption for the polymer nanocomposites.

Keywords

Carbon nanotube Nanocomposite Silanization Polymer brush Emulsion polymerization 

Notes

Acknowledgments

Support from the University of Sydney is acknowledged for conducting part of the research. Assistance with the XPS analysis from UNSW is also acknowledged.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Miftah U. Khan
    • 1
  • Kakarla Raghava Reddy
    • 1
  • Theedanai Snguanwongchai
    • 1
  • Enamul Haque
    • 1
  • Vincent G. Gomes
    • 1
  1. 1.School of Chemical & Biomolecular EngineeringThe University of SydneySydneyAustralia

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