@article { ISI:000255728500004,
	title = {Efficient route towards the covalent functionalization of single walled carbon nanotubes},
	journal = {Applied Surface Science},
	volume = {254},
	number = {16},
	year = {2008},
	month = {JUN},
	pages = {4936-4943},
	publisher = {ELSEVIER SCIENCE BV},
	type = {Article},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>A simple and efficient method of chemical functionalization of both single and multiwalled carbon nanotubes has been discussed to give enhanced water solubility by rapidly and efficiently generating an appreciable amount of hydrophilic functional groups using microwave radiation. Surface functionalization containing more than 30 wt\% of oxygen has been achieved, resulting into solubility of 2-5 mg/mL. Further covalent functionalization of such soluble SWNTs provides a remarkable degree of aniline functionalization through amidation, where the formation of polyaniline has been avoided. Functionalization of SWNTs is confirmed by techniques like electron microscopy, Fourier transform infrared spectroscopy, thermogravimetry, Raman spectroscopy, cyclic voltammetry and impedance spectroscopy. Electrochemical analysis suggests an enhanced double layer capacitance (similar to 110 F/g) of nanotubes after microwave treatment. Aniline functionalization of SWNTs shows possible variations on the nanotube topography with concomitant formation of a dynamic polymer layer on the nanotube surface. (C) 2008 Elsevier B.V. All rights reserved.</p>},
	keywords = {Carbon nanotubes, Functionalization, Microwave, solubility},
	issn = {0169-4332},
	doi = {10.1016/j.apsusc.2008.01.148},
	author = {Kakade, Bhalchandra A. and Pillai, Vijayamohanan K.}
}
@article { ISI:000262377000014,
	title = {Near-complete phase transfer of single-wall carbon nanotubes by covalent functionalization},
	journal = {Journal of Chemical Sciences},
	volume = {120},
	number = {6},
	year = {2008},
	note = {International Conference on Molecules and Materials - New Directions, Bangalore, INDIA, DEC 04, 2008},
	month = {NOV},
	pages = {599-606},
	publisher = {INDIAN ACAD SCIENCES},
	address = {C V RAMAN AVENUE, SADASHIVANAGAR, P B \#8005, BANGALORE 560 080, INDIA},
	abstract = {<p>We describe here an efficient phase transfer of single wall carbon nanotubes (SWNTs) from aqueous to non-aqueous media using a unique amide functionalization route, where water soluble SWNTs (2.6 mg/mL) are effectively transferred to solvents like chloroform, toluene and CS(2). A maximum of 30 wt\% of oxygenated groups have been generated on the side walls by rapid microwave treatment, leading to a solubility of more than 2.6 mg/mL in water. Approximate surface amine coverage of 50\% has been accomplished after oxalyl chloride treatment as inferred from thermogravimetry and X-ray photoelectron spectroscopy by controlling several key parameters associated with the extent of functionalization including purity of the sample, temperature and time.</p>},
	keywords = {Carbon nanotubes, microscopy, Microwave, Nanostructures, solubility of SWNTs},
	issn = {0253-4134},
	doi = {10.1007/s12039-008-0091-3},
	author = {Kakade, Bhalchandra A. and Patil, Sanjay and Sathe, Bhaskar and Gokhale, Suresh and Pillai, Vijayamohanan}
}
