Improved rheological properties and stability of multiwalled carbon nanotubes/polymer in harsh environment

Nourafkan, Ehsan, Alhaji Haruna, Maje, Gardy, Jabbar and Wen, Dongsheng (2019) Improved rheological properties and stability of multiwalled carbon nanotubes/polymer in harsh environment. Journal of Applied Polymer Science, 136 (11). ISSN 1097-4628

Full content URL: https://doi.org/10.1002/app.47205

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Improved rheological properties and stability of multiwalled carbon nanotubes/polymer in harsh environment
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Abstract

This work aims to improve the rheological properties and stability of multiwalled carbon nanotubes (MWCNTs)/acrylamide (AA) base skeleton polymer blends at harsh environment of high salinity-high temperature (HS-HT) or various pH. Different co/terpolymers have been accomplished to modify the structure of AA polymer by free-radical copolymerization of AA-based monomers. Anionic, cationic, and hydrophobic functional groups were used for the synthesis of polyelectrolyte, polyampholytic, and partially hydrophobic AA polymer types. The conversion, molecular weight, and poly dispersity of co/terpolymers have been evaluated by nuclear magnetic resonance (1H-NMR), gel permeation chromatography, and differential scanning calorimetry analysis. The effects of sonication power, concentration of polymer, and concentration of MWCNTs were also investigated on rheological behavior of co/terpolymers. The results show that negative polyelectrolyte and polyampholytic polymers are the best candidates for the improvement of MWCNTs/polymer stability and viscosity at HS-HT and alkali environment, respectively.

Keywords:multiwalled carbon nanotubes, partially hydrophobic polymer, polyampholytic polymer, polyelectrolyte polymer, rheological behavior, stability
Subjects:H Engineering > H800 Chemical, Process and Energy Engineering
Divisions:College of Science > School of Mathematics and Physics
ID Code:36945
Deposited On:10 Sep 2019 08:46

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