Phase Separation of Carbon Nanotubes and Turbostratic Graphite Using a Functional Organic Polymer

Abstract

ring overnight at room temperature, monomer and initiator were readily absorbed in the vesicle bilayer. Photoinitiated polymerizations were performed in a thermostatted quartz reactor using either an UV-lamp (HPR 125 W, Philips) or a pulsed excimer laser (Lambda Physics XeF, 351 nm, 2 Hz pulse frequency, 30 mJ energy per pulse) as irradiation source. Conversions were determined by HPLC analysis of the residual monomers.Details concerning the use of cryo-electron microscopy have been described earlier [19].

Polymer/Carbon Nanotube Nanocomposites

“…Covalent functionalization of CNTs can be achieved by introducing (Fig. 7) by using oxidizing agents such as strong acids, which results in the formation of carboxylic or hydroxyl groups (-COOH, -OH) on the surface of nanotubes (Coleman, 2000, Singh, 2009). This type of functionalization is known as defect group functionalization.…”

“…Polymer molecules can also be grafted on the surface of CNTs in presence of these active functional groups (-COOH, -NH 2, -OH). Grafting of polymer chain on CNTs can be carried out either by 'grafting from' or 'grafting to' technique (Coleman, 2000(Coleman, , 2006Liu, 2005). The grafting-from approach is based on the initial immobilization of initiators onto the nanotube surface, followed by in-situ polymerization with the formation of polymer molecules attached to CNTs.…”

Controlling the optical properties of a conjugated co-polymer through variation of backbone isomerism and the introduction of carbon nanotubes

“…Recently, a new approach to solubilise MWNT that facilitates purification and processibility was reported [23]. Through modification of a PPV structure, high wettability between PmPV-co-DOctOPV and the lattice of the nanotubes can be achieved..…”

“…To clarify, the natures of the sediment and remaining solute were studied using electron paramagnetic resonance (EPR) [23]. Electron paramagnetic resonance concerns the resonant absorption of microwaves in the presence of a magnetic field.…”

Investigation of Aromatic/Aliphatic Polyimides as Dispersants for Single Wall Carbon Nanotubes

“…There are four prominent methods for achieving dispersion: mechanical methods 8,10 , functionalizing the SWNTs [11][12][13][14][15][16][17][18][19][20] , using surfactants 21 , and non-covalent modification by using small molecules and polymer dispersants [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39] . There are advantages and disadvantages associated with each of the listed methods.…”