A Facile Approach to Single‐Wall Carbon Nanotube/Poly(allylamine) Nanocomposites

Abstract

A facile approach to polymer nanocomposites with single‐wall carbon nanotubes and cationic polymers is reported. The composite material was synthesized by producing carboxylic acid groups at the nanotube termini followed by a reaction with poly(allylamine) in water. Fourier transform infrared spectral and thermogravimetric analyses corroborate that the poly(allylamine) chains were wrapped on the surface of the carbon nanotubes. The scanning electron microscopic (SEM) image shows that the nanotubes were dispersed with little aggregation, thus, strongly suggesting that the poly(allylamine) chains have covered the single‐wall carbon nanotubes, which was further evidenced by transmission electron microscopy. The composites are soluble in water, and this solubilization process opens up new opportunities in the solution chemistry on pristine nanotubes.

One-step preparation of water-soluble single-walled carbon nanotubes

“…And the mass loss at the temperature above 600 °C is assigned to the decomposition of nanotubes [32]. According to the TGA trace, the quantity of functional groups on the nanotube surfaces is estimated to be nearly 20%.…”

Noble Metal Decoration and Alignment of Carbon Nanotubes in Carboxymethyl Cellulose

“…[1][2][3][4][5] The larger surface areas and high electric conductivity render them as ideal supporting materials for metal nanoparticle catalysts such as Ag, Au, Pt, and Pd nanoparticles, which have shown great promise in catalysis, [6] surface-enhanced Raman scattering (SERS), [7] and electrochemical and fuel cells. [8][9][10][11][12] CNTs are also templates for attaching metal nanoparticles and nanoparticle-fused metal nanowires for hydrogen storage and for chemical and biological sensing applications; [13][14][15] Single walled carbon nanotubes (SWNTs) decorated with more than eighteen metals for the detection of several gases such as H 2 , CH 4 , CO, and H 2 S have been reported.…”

Synergistic effects of Na+-montmorillonite and multi-walled carbon nanotubes on mechanical properties of chitosan film

“…The preparation of nanocomposites based on CNTs is one of the hot topics in the CNTs field [9,10] because of their unique properties such as high modulus, high intrinsic electrical conductivity, small size and high thermal conductivity [11,12]. CNTs have been proved to be advanced multi-functional fillers in polymer-based nanocomposites [13,14]. IR photoresponse of CNTs is dramatically enhanced by embedding CNTs into the polycarbonate matrix [15].…”