Rheological and mechanical properties of PMMA/organoclay nanocomposites prepared via ultrasound-assisted in-situ emulsion polymerization

Poddar, Maneesh Kumar; Vishwakarma, Kavita; Moholkar, Vijayanand S.

doi:10.1007/s11814-019-0252-8

Cited by 12 publications

(6 citation statements)

References 40 publications

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“…4 [36]. The TEM images clearly showed the presence of clay structures as dark layers which are almost uniform in nanocomposites with loading rate of clay 1.0 and 2.0 wt.% -which confirmed the exfoliated structure.…”

Section: Structural Morphology Analysismentioning

confidence: 59%

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Sonochemical Synthesis of Polymer Nanocomposites

Poddar

2022

Materials Research Foundations

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Polymer nanocomposite materials have drawn the attention of scientists due to their outstanding properties as compared to native polymers. The nanocomposites of polymer are widely used in packaging, aerospace, nanocoatings, solar energy, automotive, electronics, semiconductors, cosmetic, and construction. The modifications in the properties are done according to their applications in various fields. The properties of such nanocomposite materials depend on several variables such as nanoparticles dispersion and distribution, flame retardancy, mechanical and tensile strength, thermal properties, electrical and magnetic properties. In addition to these, the nanofillers play a vital role in nanocomposites to enhance or modify their mechanical and physical properties. In this chapter, various aspects of the nanocomposites of polymer have been discussed, including ultrasound-assisted in-situ polymerization intercalation and nanoparticles dispersion. The processing of nanocomposites using different filler materials such as ZnO, reduced graphene oxide (RGO), Cloisite-30B, etc. as well as the percentage of filler materials has been discussed in detailed. Finally, the nanocomposites have been characterized using different analytical techniques to elucidate its properties.

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Section: Structural Morphology Analysismentioning

confidence: 59%

“…In their studied, Borthakur et al [37] found a partial exfoliation of final nanocomposites structure with the clay loading of 1.0 and 2.0 wt.% and a complete exfoliation of nanocomposites was achieved with 0.5 wt% clay loading. [36].…”

Section: Structural Morphology Analysismentioning

confidence: 99%

Sonochemical Synthesis of Polymer Nanocomposites

Poddar

2022

Materials Research Foundations

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“…Poddar et al. [ 92 ] developed a kind of ultrasound‐assisted in situ emulsion polymerization to prepare PMMA/organoclay nanocomposites. Measurement of rheological properties revealed that, due to the flow restriction of PMMA chains induced by nanofillers, the complex viscosity, storage, and loss modulus of the resulting PMMA/organoclay nanocomposites were increased with incorporation of clay platelets in PMMA matrix.…”

Section: In Situ Emulsion Polymerization To Prepare Polymer Nanocompo...mentioning

confidence: 99%

“…The polymerization was carried out by use of MMA monomer and 3% sodium carbonate treated bentonite clay in the presence of sodium lauryl sulfate as emulsifier. Poddar et al [92] developed a kind of ultrasound-assisted in situ emulsion polymerization to prepare PMMA/organoclay nanocomposites. Measurement of rheological properties [93] Copyright 2017, Elsevier.…”

Section: Polymer Nanocomposites Containing Silica-based Nanofillersmentioning

confidence: 99%

In Situ Emulsion Polymerization to Multifunctional Polymer Nanocomposites: A Review

Xu,

Hao,

Wang

et al. 2023

Macro Chemistry & Physics

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Polymer nanocomposites are a class of composite materials containing polymer continuous phase as matrix and inorganic nanoparticles as fillers. Combining the advantages of both polymer and nanofillers, polymer nanocomposites can yield some desirable functionalities that cannot be achieved by the individual components, thus exhibiting tremendous potential for a variety of applications. However, their performances markedly depend on the dispersion and distribution of nanofillers in the polymer matrix. Recently, in situ emulsion polymerization has been demonstrated to be a powerful approach for the preparation of multifunctional polymer nanocomposites with good dispersion and homogeneous distribution of nanofillers. In this review, the fundamentals of polymer nanocomposites and their preparation strategies were briefly discussed, and then we comprehensively summarized recent advances in the design, preparation, functionalization and applications of polymer nanocomposites via in situ emulsion polymerization. The particular focus was placed on the strategies for achieving homogeneous and good dispersion of nanofillers within polymer matrixes. Moreover, the current challenges and future opportunities of in situ emulsion polymerization to polymer nanocomposites are discussed to motivate future contributions and explore new possibilities.This article is protected by copyright. All rights reserved

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“…Most of these studies focused on the chemical synthesis route of PMMA/MMT intercalated hybrid preparation including in situ polymerization, and also by melt blending and solution-cast (SC) methods. Some studies have revealed that the ultrasonic-assisted (USA) in situ polymerization is highly effective in achieving the promising properties PMMA/MMT nanocomposites [21][22][23]. Additionally, the USA prepared nanocomposites of MMT and alkali salt loaded blend matrices of PMMA with poly(ethylene oxide) (PEO) are recognized as promising solid polymer electrolytes in developing ion-conducting energy storage devices [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Superior optical and dielectric properties of ultrasonic-assisted solution-cast prepared PMMA/MMT nanocomposite films

Dhatarwal

Sengwa

2021

Funct. Compos. Struct.

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Poly(methyl methacrylate) (PMMA) and montmorillonite (MMT) nanoclay based PMMA/MMT nanocomposite films were prepared by solution-cast (SC) and ultrasonic-assisted SC (USA-SC) methods, and characterized for structural, thermal, optical, and dielectric properties. The x-ray diffraction patterns evidenced that the amount of MMT exfoliated nanoplatelets and tactoids in the nanocomposites are significantly affected by the preparation methods. Differential scanning calorimetry thermograms showed lowering of glass transition temperature of these nanocomposites as compared to the neat polymer matrix. The ultraviolet-visible spectroscopic measurements explained that the SC prepared PMMA/MMT films have high absorbance in comparison to host matrix which further enhanced when the film thickness was increased. However, in comparison to the SC prepared nanocomposite films, the USA-SC prepared films have low absorbance in the visible region which remained independent of the film thickness. Each nanocomposite film exhibited two different energy bandgaps which confirm their use as multifunctional bandgap tuner in optoelectronic devices. The dielectric relaxation spectroscopy in the frequency range from 20 Hz to 1 MHz revealed that the USA-SC prepared PMMA/MMT film has about nine per cent increase of dielectric permittivity at all the frequencies without alteration in dielectric loss when compared with the PMMA film, confirming its great potential as nanodielectric for advances in flexible microelectronic device technology.

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Rheological and mechanical properties of PMMA/organoclay nanocomposites prepared via ultrasound-assisted in-situ emulsion polymerization

Cited by 12 publications

References 40 publications

Sonochemical Synthesis of Polymer Nanocomposites

Sonochemical Synthesis of Polymer Nanocomposites

In Situ Emulsion Polymerization to Multifunctional Polymer Nanocomposites: A Review

Superior optical and dielectric properties of ultrasonic-assisted solution-cast prepared PMMA/MMT nanocomposite films

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