Synthesis and characterization of intercalated polyaniline-clay nanocomposite using supercritical CO2

Abdelraheem, Amira; El-Shazly, A.H.; Elkady, M. F.

doi:10.1063/1.5039186

Cited by 3 publications

(5 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For instance, the covalent modification of the outer surfaces of halloysite nanotubes enhances their dispersibility into the polymer matrix, which may improve the thermal stability and tensile properties of the resulting polymer/nanoclay composites [31]. Synthesis approaches may lead to different combinations of polymer matrix and nanoclays, such as an immiscible structure, an intercalated structure and an exfoliated structure [32]. In the immiscible structure, the nanoclay dispersion aggregates within the polymer matrix and the polymers are separated from the clay layers [33].…”

Section: Introductionmentioning

confidence: 99%

A Review of the Synthesis and Applications of Polymer–Nanoclay Composites

et al. 2018

View full text Add to dashboard Cite

Recent advancements in material technologies have promoted the development of various preparation strategies and applications of novel polymer–nanoclay composites. Innovative synthesis pathways have resulted in novel polymer–nanoclay composites with improved properties, which have been successfully incorporated in diverse fields such as aerospace, automobile, construction, petroleum, biomedical and wastewater treatment. These composites are recognized as promising advanced materials due to their superior properties, such as enhanced density, strength, relatively large surface areas, high elastic modulus, flame retardancy, and thermomechanical/optoelectronic/magnetic properties. The primary focus of this review is to deliver an up-to-date overview of polymer–nanoclay composites along with their synthesis routes and applications. The discussion highlights potential future directions for this emerging field of research.

show abstract

Section: Introductionmentioning

confidence: 99%

A Review of the Synthesis and Applications of Polymer–Nanoclay Composites

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The shifting of the C–O stretching peak toward a lower wavenumber in nanocomposites indicates that some interactions must have taken place between the polymer and nanoclay. This may be attributed to the intermolecular hydrogen bond between the surface hydroxyl (OH) functional group of the nanoclay and the C–O group of the polymer. − …”

Section: Resultsmentioning

confidence: 99%

“…This may be attributed to the intermolecular hydrogen bond between the surface hydroxyl (OH) functional group of the nanoclay and the C–O group of the polymer. 36 − 38 …”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Polymer nanocomposites containing MMT nanoclay can be formed in different structures depending on the used preparation method such as phase separation, intercalated structures, and/or an exfoliated structures. 36 In the phase separation, the polymer is separated from the nanoclay as a result of poor dispersion and/or nanoclay aggregation. 37 An intercalated structure, on the other hand, occurs when the polymer chains intercalate between the nanoclay layers, altering their interlayer spacing until a point where the electrostatic forces between the nanoclay layers are diminished, causing a fully separated nanoclay stack (exfoliated structure).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nanocomposite of CO₂-Based Polycarbonate Polyol with Highly Exfoliated Nanoclay

Alroaithi

2023

ACS Omega

View full text Add to dashboard Cite

Polypropylene carbonate (PPC) derived from carbon dioxide has been used as a precursor for the synthesis of polyurethane (PU). The high viscosity of the PPC is the key parameter hindering its processability during PU synthesis. Herein, a PPC nanocomposite with highly exfoliated nanoclay was prepared through a solution intercalation process. A wide range of nanoclay concentrations incorporated into the PPC were studied. The impacts of the nanoclay on the PPC were investigated in order to maintain the polymer structure while improving its physical properties. The characterizations of PPC nanocomposites showed that the highly exfoliated nanoclay contributed to a viscosity reduction, and a slight reduction in the molecular weight. The polymer degradation was indicated by the formation of cyclic propylene carbonate. The minimum or critical concentration of nanoclay was found to be between ∼0.5 and 2.0 wt %. Within this range, the polymer degradation is minimal. The PPC nanocomposites with a lower viscosity showed excellent precursors for making PU coating materials. The PU coating derived from the PPC nanocomposite has higher anticorrosive properties in comparison with the non-modified PU coating.

show abstract