Investigation of the Interfacial Binding between Single-Walled Carbon Nanotubes and Heterocyclic Conjugated Polymers

Foroutan, Masumeh; Nasrabadi, Amir Taghavi

doi:10.1021/jp100960u

Cited by 76 publications

(54 citation statements)

References 53 publications

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“…In this regard, Foroutan el al. [50] have investigated the interfacial binding between the SWNTs and conjugated polymers including polythiophene (PT), polypyrrole (PP), poly (2,6-pyridinylenevinylene-co-2,5-dioctyloxy-p-phenylenevinylene) (PPyPV), and poly(m-phenylenevinyleneco-2,5-dioctyloxy-p-phenylenevinylene) (PmPV) and showed that the intermolecular interaction was strongly influenced by the specific monomer structure of conjugated polymer and nanotube radius.…”

Section: Dispersion Of Cnts By Polymermentioning

confidence: 99%

Recent developments concerning the dispersion of carbon nanotubes in surfactant/polymer systems by MD simulation

Fatemi

Foroutan

2015

J Nanostruct Chem

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Carbon nanotubes (CNTs) hold the promise of delivering exceptional mechanical properties and multifunctional characteristics due to their unique physiochemical properties and prospective applications in various nanotechnologies. However, current techniques of CNTs fabrication cannot produce homogenous CNTs, and this prevents the widespread use of CNTs. Ever-increasing interest in applying CNTs in many different fields has led to continued efforts to develop dispersion and functionalization techniques. Techniques for separating bundles of CNTs into homogeneous dispersion are still under development. The preparation of effective dispersions of CNTs presents a major impediment to the extension and utilization of CNTs. CNTs intrinsically tend to bundle and/or aggregate. The prevention of such behavior has been explored by testing various techniques to improve the dispersibility of CNTs in a variety of solvents. There are mainly two approaches to obtain a good quality dispersion; chemical functionalization and physical interactions. The chemical functionalization technique has been found effective, but deteriorates the intrinsic properties of CNTs through the introduction of defects in the wall. Physical blending approaches with the ultrasound and high speed shearing have been proven capable of debundling CNTs and stabilizing individual CNTs while maintaining their integrity and intrinsic properties. Contemporary methods for dispersion of CNTs in aqueous media are discussed and most attention is paid to molecular dynamics simulation techniques and other physical techniques, as well as to the use of various surfactants and polymers.

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Section: Dispersion Of Cnts By Polymermentioning

confidence: 99%

Recent developments concerning the dispersion of carbon nanotubes in surfactant/polymer systems by MD simulation

Fatemi

Foroutan

2015

J Nanostruct Chem

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“…Also, use of π-π interaction of aromatic rings in polymers is known to be effective for both binding carbon nanotubes (CNTs) and dispersing them without damaging the sp 2 structure and thereby interrupting CNT conjugation [23][24][25]. Therefore, aromatic rings on the polystyrene block should be effective for stacking the SIS molecules onto the CNT surface via π-π interaction; dispersing the CNTs; MWNTs were mixed and ground with ionic liquid (2.5 times vs. MWNTs) using a pestle and mortar for 30 min.…”

Section: Complete Gelation Of Mwnts and Ionic Liquid Occurred When A mentioning

confidence: 99%

Free-standing nanocomposites with high conductivity and extensibility

et al. 2013

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The prospect of electronic circuits that are stretchable and bendable promises tantalizing applications such as skin-like electronics, roll-up displays, conformable sensors and actuators, and lightweight solar cells. The preparation of highly conductive and highly extensible materials remains a challenge for mass production applications, such as free-standing films or printable composite inks. Here we present a nanocomposite material consisting of carbon nanotubes, ionic liquid, silver nanoparticles, and polystyrene-polyisoprenepolystyrene having a high electrical conductivity of 3700 S cm -1 that can be stretched to 288% without permanent damage. The material is prepared as a concentrated dispersion suitable for simple processing into free-standing films. For the unstrained state, the measured thermal conductivity for the electronically conducting elastomeric nanoparticle film is relatively high and shows a non-metallic temperature dependence consistent with phonon transport, while the temperature dependence of electrical resistivity is metallic. We connect an electric fan to a DC power supply using the films to demonstrate their utility as an elastomeric electronic interconnect. The huge strain sensitivity and the very low temperature coefficient of resistivity suggest their applicability as strain sensors, including those that operate directly to control motors and other devices. © 2013 IOP Publishing Ltd. AbstractThe prospect of electronic circuits that are stretchable and bendable promises tantalizing applications such as skin-like electronics, roll-up displays, conformable sensors and actuators, and lightweight solar cells. The preparation of highly conductive and highly extensible materials is still a remaining challenge amenable to mass production such as free-standing film or printable composite ink. Here we present a nanocomposite material consisting of carbon nanotubes, ionic liquid, silver nanoparticles, and polystyrene-polyisoprene-polystyrene having a high electrical conductivity of 3700 S cm -1 that can be stretched to 288% without permanent damage. The material is prepared as a concentrated dispersion suitable for simple processing into free-standing films. For the unstrained 2 state, the measured thermal conductivity for the electronically conducting elastomeric nanoparticle film is relatively high and shows a non-metallic temperature dependence consistent with phonon transport, while the temperature dependence of electrical resistivity is metallic. We connect an electric fan to a DC power supply using the films to demonstrate their utility as an elastomeric electronic interconnect. The giant strain sensitivity and the very low temperature coefficient of resistivity suggest applicability for strain sensors, including those that operate directly to control motors and other devices.

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“…A low density CNTs forms small CNT/OSC interfacial area while high density CNTs creates large interfacial area with OSC. It has been suggested from the molecular dynamics simulation and NMR spectroscopy that2 a π-π interaction exists between CNT/OSC [19][20][21]. In addition, CNT has a field emission property due their one-dimensional structure [22].…”

Section: Introductionmentioning

confidence: 99%

Organic Semiconductor and Transistor Electrical Characteristic Based on Carbon Nanotubes

Safari¹,

Rafiee²,

Oskouei³

2016

Bulletin EEI

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Investigation of the Interfacial Binding between Single-Walled Carbon Nanotubes and Heterocyclic Conjugated Polymers

Cited by 76 publications

References 53 publications

Recent developments concerning the dispersion of carbon nanotubes in surfactant/polymer systems by MD simulation

Recent developments concerning the dispersion of carbon nanotubes in surfactant/polymer systems by MD simulation

Free-standing nanocomposites with high conductivity and extensibility

Organic Semiconductor and Transistor Electrical Characteristic Based on Carbon Nanotubes

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