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    • Covalent and non-covalent functionalization and solubilization of double-walled carbon nanotubes in nonpolar and aqueous media

      L S Panchakarla A Govindaraj

      Volume 120 Issue 6 November 2008 pp 607-611

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/120/06/0607-0611

    • Keywords

       

      Carbon nanotubes; double-walled nanotubes; functionalization; Raman spectroscopy; transmission electron microscopy.

    • Abstract

       

      Double-walled carbon nanotubes (DWNTs) have been functionalized by both covalent and non-covalent means. Covalent functionalization has been carried out by attaching an aliphatic amide function to DWNTs which enable solubilization in non-polar solvents. Solubilization in non-polar solvents has also been accomplished by non-covalent functionalization by using 1-pyrenebutanoicacid succinimidyl ester (PYBS). Non-covalent functionalization of DWNTs has been carried out by using polyethylene glycol (PEG) and polyoxyethylene(40)nonylphenyl ether (IGPAL), both of which enable solubilization in aqueous media. These functionalized DWNTs have been characterized by transmission electron microscopy, IR and Raman spectroscopy.

    • Author Affiliations

       

      L S Panchakarla1 A Govindaraj1

      1. Chemistry and Physics of Materials Unit and CSIR Center of Excellence in Chemistry, DST Unit on Nanoscience, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O. Bangalore 560 064

    • Dates

       
      Published
      November 2008

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