Preparation of a Novel CO2-Responsive Polymer/Multiwall Carbon Nanotube Composite

A CO2-responsive composite of multiwall carbon nanotube (MWCNT) coated with polydopamine (PDA) and polydimethylamino-ethyl methacrylate (PDMAEMA) was prepared. The PDA was first self-polymerized on the surface of carbon nanotube. 2-bromoisobutyryl bromide (BiBB) was then immobilized by PDA and then initiated the ATRP of DMAEMA on the carbon nanotube surface. The resulting composite was characterized by Fourier-transform infrared spectroscopy (FTIR) and transmission electron microscopy (TEM). The CO2-responsive test was performed by bubbling CO2 into the mixture of MWCNT-PDA-PDMAEMA composite in water. A well-dispersed solution was obtained and the UV-Vis transmittance decreased dramatically. This is attributed to the reaction between PDMAEMA and CO2. The formation of ammonium bicarbonates on the surface of carbon nanotubes leads to the separation of nanotube bundles. This process can be reversed as the removal of CO2 by bubbling N2.

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In-situ Transmission Electron Microscopy of Structural Changes and Luminescence of a Multiwall Carbon Nanotube by Applying an Electric Current

Materia Japan ◽

10.2320/materia.57.616 ◽

2018 ◽

Vol 57 (12) ◽

pp. 616-616

Author(s):

Koji Asaka ◽

Koshi Nishikawa ◽

Yahachi Saito

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Carbon Nanotube ◽

Electric Current ◽

Structural Changes ◽

Multiwall Carbon Nanotube ◽

Transmission Electron ◽

Multiwall Carbon

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Linear carbon chains encapsulated in multiwall carbon nanotubes: Resonance Raman spectroscopy and transmission electron microscopy studies

Carbon ◽

10.1016/j.carbon.2015.04.001 ◽

2015 ◽

Vol 90 ◽

pp. 172-180 ◽

Cited By ~ 32

Author(s):

N.F. Andrade ◽

T.L. Vasconcelos ◽

C.P. Gouvea ◽

B.S. Archanjo ◽

C.A. Achete ◽

...

Keyword(s):

Electron Microscopy ◽

Carbon Nanotubes ◽

Transmission Electron Microscopy ◽

Raman Spectroscopy ◽

Resonance Raman Spectroscopy ◽

Resonance Raman ◽

Multiwall Carbon Nanotubes ◽

Carbon Chains ◽

Transmission Electron ◽

Multiwall Carbon

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Application of multiwall carbon nanotubes to conductive manipulation-probe tips for in-situ transmission electron microscopy of nanometer-sized material: electrical measurement of a silicon nanoparticle

Materials Research Express ◽

10.1088/2053-1591/aae81f ◽

2018 ◽

Vol 6 (1) ◽

pp. 015038

Author(s):

Koji Asaka ◽

Tomohiro Terada ◽

Yahachi Saito

Keyword(s):

Electron Microscopy ◽

Carbon Nanotubes ◽

Transmission Electron Microscopy ◽

Multiwall Carbon Nanotubes ◽

Electrical Measurement ◽

Silicon Nanoparticle ◽

Transmission Electron ◽

Multiwall Carbon

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Carbon Nanotube Reinforced High Density Polyethylene Materials for Offshore Sheathing Applications

Molecules ◽

10.3390/molecules25132960 ◽

2020 ◽

Vol 25 (13) ◽

pp. 2960 ◽

Cited By ~ 1

Author(s):

Chinyere Okolo ◽

Rafaila Rafique ◽

Sadia Sagar Iqbal ◽

Mohd Shahneel Saharudin ◽

Fawad Inam

Keyword(s):

Electron Microscopy ◽

Mechanical Properties ◽

Carbon Nanotube ◽

High Density Polyethylene ◽

Uv Light ◽

High Density ◽

Accelerated Weathering ◽

Multiwall Carbon Nanotube ◽

Transmission Electron ◽

Multiwall Carbon

Multiwall carbon nanotube (CNT)-filled high density polyethylene (HDPE) nanocomposites were prepared by extrusion and considered for their suitability in the offshore sheathing applications. Transmission electron microscopy was conducted to analyse dispersion after bulk extrusion. Monolithic and nanocomposite samples were subjected to accelerated weathering and photodegradation (carbonyl and vinyl indices) characterisations, which consisted of heat, moisture (seawater) and UV light, intended to imitate the offshore conditions. The effects of accelerated weathering on mechanical properties (tensile strength and elastic modulus) of the nanocomposites were analysed. CNT addition in HDPE produced environmentally resilient nanocomposites with improved mechanical properties. The energy utilised to extrude nanocomposites was also less than the energy used to extrude monolithic HDPE samples. The results support the mass substitution of CNT-filled HDPE nanocomposites in high-end offshore applications.

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Adhesion study of polyimide to single-wall carbon nanotube bundles by energy-filtered transmission electron microscopy

Nanotechnology ◽

10.1088/0957-4484/14/9/101 ◽

2003 ◽

Vol 14 (9) ◽

pp. L11-L14 ◽

Cited By ~ 36

Author(s):

Cheol Park ◽

Roy E Crooks ◽

Emilie J Siochi ◽

Joycelyn S Harrison ◽

Neal Evans ◽

...

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Carbon Nanotube ◽

Single Wall Carbon Nanotube ◽

Single Wall Carbon ◽

Nanotube Bundles ◽

Transmission Electron

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Carbon Nanotube Electrostatic Biprism: Principle of Operation and Proof of Concept

Microscopy and Microanalysis ◽

10.1017/s1431927604040759 ◽

2004 ◽

Vol 10 (4) ◽

pp. 420-424 ◽

Cited By ~ 7

Author(s):

John Cumings ◽

A. Zettl ◽

M.R. McCartney

Keyword(s):

Electron Microscopy ◽

Carbon Nanotubes ◽

Transmission Electron Microscopy ◽

Electron Beam ◽

Carbon Nanotube ◽

Field Emission ◽

Proof Of Concept ◽

Transmission Electron

During in situ transmission electron microscopy (TEM) field emission experiments, carbon nanotubes are observed to strongly diffract the imaging TEM electron beam. We demonstrate that this effect is identical to that of a standard electrostatic biprism. We also demonstrate that the nanotube biprism can be used to capture electron-holographic information.

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