Synthesis of modified sepiolite-g-polystyrene sulfonic acid nanohybrids by radiation induced graft polymerization

Taimur, Shaista; Hassan, Muhammad; Yasin, Tariq; Ali, Syed Wasim

doi:10.1016/j.radphyschem.2018.02.020

Cited by 19 publications

(7 citation statements)

References 22 publications

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“…These characteristic peaks at 16.6 , 19.6 , 20.4 , 23.5 , 26.9 , 34.3 , 36.8 , and 39.8 maintained their position in modified sepiolite as well. This shows that during silanization process sepiolite retained its structural integrity,33 however, this affected the peak intensities at 2θ values of27.8 , 34.3 , 36.8 , and 39.8 .…”

mentioning

confidence: 91%

Synthesis and EMI shielding studies of polyaniline grafted conducting nanohybrid

Raza

Nasir

Tahir

et al. 2020

J of Applied Polymer Sci

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Polyaniline (PANI) grafted conducting nanohybrids are successfully synthesized by emulsion graft polymerization. Maximum grafting of 644% is obtained on sepiolite at optimized concentrations and reaction conditions. The Fourier transform infrared (FT‐IR) spectra of sepiolite grafted polyaniline (MS‐g‐PANI) nanohybrid revealed the presence of stretching vibrations of C=C bonds of polyaniline at 1580 and 1490 cm−1 along with the characteristic peaks of sepiolite. Increased thermal stability of the nanohybrid is observed with the increase in polyaniline grafting. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are used to study the structural changes caused by grafting. A progressive increase in electrical conductivity is observed with the increase in grafting yield. Maximum electrical conductivity of 0.427 Scm−1 is observed in the nanohybrid having 644% grafting. 24.2 dB (>99% attenuation) EMI shielding effectiveness has been exhibited by the developed nanohybrids in X‐band frequency range.

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confidence: 91%

Synthesis and EMI shielding studies of polyaniline grafted conducting nanohybrid

Raza

Nasir

Tahir

et al. 2020

J of Applied Polymer Sci

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“…Other than that, according to Taimur and teams, polystyrene (PS) was grafted with sepiolite nanohybrid (MS) using gamma rays' radiation grafting from the 60 Co irradiator in the presence of dichloromethane (DCM) as the solvent [31]. To get the highest grafting yield and kinetics, researchers are investigating the effects of varied irradiation dosages and monomer concentrations [39] [40].…”

Section: % Dg At Concentration Of Benzophenone At 2wt%mentioning

confidence: 99%

“…The increase in grafting yield is attributed to a rise in the number of radicals generated by radiation on monomers [41] [42]. Nonetheless, when grafting yield reaches particular doses, it can stop increasing because it has attained homo-polymerization, which causes the system's viscosity to increase, making it difficult to approach the monomer radicals to the grafting chain on MS [31] [43]. In terms of monomer concentration, the higher the monomer concentration, the higher the grafting yield.…”

Section: % Dg At Concentration Of Benzophenone At 2wt%mentioning

confidence: 99%

Modified Surface Polymer Prepared by using Radiation-Induced Grafting Co-polymerization Method and Its Application: A Mini Review

Seman

Tarmizi

Ali

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The use of radiation-induced grafting (RIG) polymerization techniques is an appealing way to create and develop polymerization of polymer. The method of copolymerization preparation was evaluated in this paper based on the types of radiation-induced grafting polymerization and their prospective applications. Based on the method of preparation, the optimum grafting yield of the monomer in the polymer backbone is described. The approach used to summarise this review was to go through polymer-related papers from the science direct online database from 2010 to 2021. Then, from those selected journals, the technique of preparation, the grafting yield, and the application were reviewed. Furthermore, the majority of researchers from reviewed journals employed gamma irradiation to prepare the modified polymer, followed by electron beam irradiation, plasma irradiation and UV irradiation. Gamma irradiation is popular because it has a better penetration rate and generates a purer result. As a result of this review paper, the radiation-induced graft polymer from the conducted study is ideal for use in biomedical applications, as a material for wastewater treatment fibre membranes, as an absorbent, and as a gas remover.

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“…Radiation grafting is established as a useful technique to fabricate functional materials without affecting the mechanical and chemical properties of the base material. The grafting process can be initiated by high energy radiations such as; gamma rays and electron beams via mutual or pre-irradiation method [30,31]. A variety of functional materials fabricated by radiation grafting of different monomers onto different base materials such as mesoporous silica [32] clay [33], polypropylene [34], etc.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of amidoxime-functionalized silica decorated with copper: a catalytic assembly for rapid reduction of dyes

Khan¹,

Hassan²,

Hussain³

et al. 2021

Turk J Chem

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In this study, amidoxime-functionalized silica decorated with copper (AFS-Cu) was fabricated and tested for its catalytic application. Fourier transform infrared spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray diffraction were employed to characterize its structure and morphology. The application of AFS-Cu as a catalyst for the catalytic reduction of methylene blue (MB) in aqueous media using NaBH 4 as reductant was evaluated. The ability to reuse as well as the effect of catalyst dose and pH of solution on the catalytic activity was investigated. The reduction of MB followed pseudo-first-order kinetics and the rate constant (k) was 0.6224 min -1 . AFS-Cu was found to be a highly effective catalyst for MB reduction reaction and can be easily recovered and reused several times with no appreciable loss of catalytic activity.

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Synthesis of modified sepiolite-g-polystyrene sulfonic acid nanohybrids by radiation induced graft polymerization

Cited by 19 publications

References 22 publications

Synthesis and EMI shielding studies of polyaniline grafted conducting nanohybrid

Synthesis and EMI shielding studies of polyaniline grafted conducting nanohybrid

Modified Surface Polymer Prepared by using Radiation-Induced Grafting Co-polymerization Method and Its Application: A Mini Review

Fabrication and characterization of amidoxime-functionalized silica decorated with copper: a catalytic assembly for rapid reduction of dyes

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