Functionalized carbon nanotubes CNTs

Linear Polymer-functionalized Carbon Nanotubes (CNTs)... 

Fama LM, Pettarin V, Goyanes S, Bernal CR (2011) Starch based nanocomposites with improved mechanical properties. Carbohydr Polym 83 1226-1231 Fama LM, Ganan P, Bernal CR, Goyanes S (2012) Biodegradable starch nanocomposites with low water vapor permeability and high storage modulus. Carbohydr Polym 87 1989-1993 Fama L, Kumar R (2014) Nanocomposites based on polylactic acid (PLA) reinforced by functionalized carbon nanotubes (CNT). In Kumar R (ed) Polymer-matrix composites t3fpes, applications and performance. Nova Science Publishers, Inc. USA (in press)... 

A functionalized carbon nanotube (CNT), CNT 2,5-dihydroxybenzyl hydrazine derivative, was synthesized and used both as a pH-adjustable enriching reagent and as a matrix in MALDI-MS analysis of trace peptides.Functionalized CNT provided twofold advantages over pristine CNT. The efficiency of enrichment of trace peptides was greatly enhanced as a result of increased surface area to volume ratio for adsorption in basic conditions. It also provided a convenient method for quick isolation. Compared with CHCA without enrichment, the detection limit for analytes can be enhanced about 10- to 100-fold after enrichment by the functionalized CNT (Figure 7.8). 

Since the discovery of SWNTs, they have been expected to become the building blocks of the next generation of functional nanomaterials. However, their strong cohesive property and poor solubility have restricted the use of SWNTs for fundamental and applied research fields. One method to overcome these problems is to make the SWNTs more soluble by wrapping them with polymers [31]. At the same time, the fabrication of high-performance carbon nanotube (CNT)-based composites is driven by the ability to create anisotropy at the molecular level to obtain appropriate functions. 

Therefore, carbon nanofibers (CNFs) as well as carbon nanotubes (CNTs) were synthesized,18,19 functionalized (with the catalytic active metal Co), and finally... 

Barrera et al. (3) sidewall functionalized carbon nanotubes with organosilanes for polymer composites, (III), with glass fibers for use in advanced cylindrical nanotube (CNT)-polymer composites. 

Carbon Nanotubes (CNTs) Use of CNTs as inorganic support, focus on electrochemistry as detection method, organic groups and biomolecules as functionalization materials, and their application in sensing. 

The amine function served also as the starting point for the first covalent linkage of Pcs to single-walled carbon nanotubes (SWNTs) [94], The pipes with open-end and surface-bound acyl chloride moieties were used to prepare the Pc-SWNTs system by amide-bond formation (Fig. 14). Accordingly, statistical reaction of 4-aminophthalonitrile with 4-tcr/-bu(yIph111alonitrile in the presence of zinc ions delivered the monoamino Pc that was then employed in the conjugation with the acid chloride modified carbon nanotubes (CNTs). Here, it should also be mentioned that other functions have been applied to the covalent modification of CNTs, i.e., amide [95], ester [96,97], or click chemistry [98],... 

Double-walled carbon nanotubes (DWNTs), first observed in 1996, constitute a unique family of carbon nanotubes (CNTs). -2 DWNTs occupy a position between the single-walled carbon nanotubes (SWNTs) and the multiwalled carbon nanotubes (MWNTs), as they consist of two concentric cylinders of rolled graphene. DWNTs possess useful electrical and mechanical properties with potential applications. Thus, DWNTs and SWNTs have similar threshold voltages in field electron emission, but the DWNTs exhibit longer lifetimes.3 Unlike SWNTs, which get modified structurally and electronically upon functionalization, chemical functionalization of DWNTs surfaces would lead to novel carbon nanotube materials where the inner tubes are intact. The stability of DWNTs is controlled by the spacing of the inner and outer layers but not by the chirality of the tubes 4 therefore, one obtains a mixture of DWNTs with varying diameters and chirality indices of the inner and outer tubes. DWNTs have been prepared by several techniques, such as arc discharge5 and chemical vapor depo-... 

We review the research on preparation, morphology, especially physical properties and applications of polyurethane (PU)/carbon nanotube (CNT) nanocomposites. First, we provide a brief introduction about the preparation of PU/CNT nanocomposites. Then, the functionalization and the dispersion morphology of CNTs as well as the structures of the nanocomposites are also introduced. After that, we discuss in detail the effects of carbon nanotubes on the physical properties (including mechanical, thermal, electrical, rheological and other properties) of PU/CNT nanocomposites. The potential applications of these nanocomposites are also addressed. Finally, the challenges and the research that needs to be done in the future for achieving high-performance polyurethane/carbon nanotube nanocomposites are prospected. 

Li et al. studied the quality and activity of a catal3Tic system used in carbon nanotube (CNT) growth process using pRS [11]. By localized Raman mapping, the variation of the active metallic species (Fe, Co) over the oxide surface (CaCOs) was quantified and analyzed. In this study, it was observed that the compositional variation in the active species over the oxide surface affected the yield and morphology of the CNT. Mayo et al. employed pRS to study the phase separation of polymer-functionalized single-walled carbon nanotubes (SWCNTs) within... 

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