NDLI: Thermal stability, adsorption and rheological behaviors of sulfonated polyacrylamide/chromium triacetate/laponite nanocomposite weak gels

Content Provider	Springer Nature Link
Author	Ehsan, Alvand Jamal, Aalaie Mahmood, Hemmati Ahmad, Sajjadian Vali
Copyright Year	2017
Abstract	The objective of the present study is to improve the behavior of sulfonated polyacrylamide (SPA) by adding Laponite and/or chromium(III) with a focus on enhanced oil recovery applications. The resultant systems are weak nanocomposite hydrogels which are subjected to rheological, thermal stability and adsorption tests. The interactions between ingredients of the hydrogel are investigated by Fourier transform infrared (FTIR) spectroscopy. In addition, dispersion of Laponite nanoparticles in hydrogel is confirmed by transmission electron microscopy (TEM). The thermal stability is determined by measuring the loss of viscosity after an aging cycle. The adsorption tests are performed on calcite and evaluated using thermo gravimetric analysis. FTIR spectra confirmed the interaction of Laponite and Cr$^{3+}$ with SPA. TEM micrograph showed an approximately uniform dispersion of Laponite in the crosslinked SPA/Cr$^{3+}$/Laponite system. The viscoelastic behaviors of the systems improved with the addition of either Laponite or chromium(III). The sulfonated polyacrylamide/chromium(III)/Laponite system slightly loses its viscosifying power when subjected to harsh conditions of themo-chemical aging process. The adsorption behavior of the systems improved with Laponite concentration while the presence of chromium(III) weakened the adsorption. Therefore the introduced polymeric systems of the present study may be a potential option for enhanced oil recovery applications in hostile conditions.
Starting Page	27
Ending Page	37
Page Count	11
File Format	PDF
ISSN	15985032
Journal	Macromolecular Research
Volume Number	25
Issue Number	1
e-ISSN	20927673
Language	English
Publisher	The Polymer Society of Korea
Publisher Date	2017-01-12
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	weak nanocomposite hydrogel sulfonated polyacrylamide rheology laponite adsorption thermal aging Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Physical Chemistry Characterization and Evaluation of Materials Nanochemistry Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Materials Chemistry Chemical Engineering Polymers and Plastics

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