The chemistry concerned with the sonochemical-assisted synthesis of CeO$_{2}$/poly(amic acid) nanocomposites

Yazdani, Shiva; Hatami, Mehdi; Vahdat, Seyed Mohammad

doi:10.3906/kim-1306-33

Cited by 14 publications

(3 citation statements)

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“…FTIR spectroscopy was used to distinguish the functional units existing on the surface of ceria particles before and after the surface treatment. FTIR spectra of CeO 2 NPs, HDTMS silane coupling agent, and surface modified NPs, were illustrated in our previous report , and the data were reported earlier. The weak stretching band of the OH groups at 3449 cm −1 suggests the presence of OH groups on the surface of ceria particles before treatment.…”

Section: Resultssupporting

confidence: 53%

Morphological investigation of synthetic poly(amic acid)/cerium oxide nanostructures

et al. 2015

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A new kind of intermediate hybrid nanocomposites (NCs) composed of poly(amic acid) (PAA) and surface modified ceria nanoparticles (NP)s had been prepared by sonochemical assisted synthesis. The PAA containing pendent benzamide units had been synthesized by the reaction of 3,5‐diamino‐N‐(4‐hydroxyphenyl) benzamide and benzene‐1,2,4,5‐tetracarboxylic dianhydride through polycondensation reaction. The structure of the prepared PAA was studied by spectroscopic techniques. The surface modifications of ceria NPs were achieved by using hexadecyltrimethoxysilane. Results of FTIR analysis demonstrated that the aliphatic chains have been covalently bonded to the surface of the CeO2 NPs. PAA/CeO2 NCs with different contents including 4, 8, and 12 wt% of CeO2 NPs was prepared by using sonochemical method. Characterization with FTIR, powder X‐ray diffraction, field emission scanning electron microscopy (FE‐SEM), transmission electron microscopy (TEM), and atomic force microscopy (AFM) confirmed the success in synthesis of NCs with well dispersion properties. XRD analysis results showed that the obtained NCs displayed the crystalline nature of ceria NPs and the amorphous character of PAA matrix. The particles size of ceria NPs in NCs are about 50–70 nm as characterized by FE‐SEM, TEM, and AFM analyses. This work demonstrates the application of intermediates as new matrices for preparation of hybrid nanostructures. POLYM. ENG. SCI., 55:2339–2348, 2015. © 2015 Society of Plastics Engineers

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Section: Resultssupporting

confidence: 53%

Morphological investigation of synthetic poly(amic acid)/cerium oxide nanostructures

et al. 2015

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“…Spin-coating technique was used to prepare thin films of CdS/poly[2-methoxy-5-(2′ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV) nanocomposite [45]. Several other CdS/polymer nano composites such as CdS/polyamidoamine dendrimer [46], CdS/ poly[4-(n-acryloyloxyalkoxy)benzoic acid] [47], and many more [48,49] were also investigated. Although the properties and synthesis of CdS/polymer nano composites are well investigated, yet the effect of CdS Nps on the degradation of polymer in inert atmosphere (i.e., N 2 gas) is not investigated.…”

Section: Introductionmentioning

confidence: 99%

The effect of alumina content on the structural properties of ZrO2-Al2O3 unstabilized composite nanopowders

Nouri¹,

Shahmiri²,

Rezaie³

et al. 2012

International Journal of Industrial Chemistry

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Homo-and copolymers of 2-(N-phthalimido)ethyl methacrylate (NPEMA) and p-chlorophenyl methacrylate (PCPMA) were prepared in N,N-dimethyl formamide (DMF) solution at 70 °C using 2,2-azo-bisisobutyronitrile (AIBN) as initiator. The nano-CdS-doped polymer composite of NPEMA and PCPMA was prepared via in situ technique. The homo-and copolymers of NPEMA and PCPMA were characterized using FT-IR spectroscopy and gel permeation chromatography (GPC). The polymer nano composites were characterized using FT-IR spectroscopy, X-ray diffraction, and transmission electron microscopy. The reactivity ratios (r 1 and r 2 ) were obtained from the various linear graphical methods. The values of r 1 (NPEMA) = 0.55 and r 2 (PCPMA) = 1.30 were found from the same graphical methods. The copolymer microstructures were found from the mean sequence length, run number, and dyad fraction. Thermal behavior of polymers and polymer nano composites under nitrogen atmosphere was studied. The activation energies of neat polymers were varied in the range of 56-85 kJ/mol, while 28-56 kJ/mol energies were found for nano-CdS-doped polymer composites. The thermodynamic parameters of thermal degradation were also obtained. Kinetic and thermodynamic parameters were confirming the stability of the neat polymers than polymer nano composites. The polymers were assessed on different microorganisms for obtaining the antimicrobial properties. Overall, the polymers permit 10-52, 20-58, and 18-56% growth of bacteria, fungi, and yeast, respectively.

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“…The absorption band at 1689 cm À1 was the stretching vibration of CQO in the carboxyl group and the absorption band at 2911 cm À1 attributed to the stretching vibration of -CH 3 . 25 These FT-IR data all indicated the successful synthesis of PAA-CeO 2 .…”

Section: Real Sample Determinationmentioning

confidence: 79%

An ordered one-step colorimetric sensor for the selective determination of catechol based on the polyacrylic acid-coated cerium oxide with laccase-like activity

et al. 2022

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The chemistry concerned with the sonochemical-assisted synthesis of CeO$_{2}$/poly(amic acid) nanocomposites

Cited by 14 publications

References 4 publications

Morphological investigation of synthetic poly(amic acid)/cerium oxide nanostructures

Morphological investigation of synthetic poly(amic acid)/cerium oxide nanostructures

The effect of alumina content on the structural properties of ZrO2-Al2O3 unstabilized composite nanopowders

An ordered one-step colorimetric sensor for the selective determination of catechol based on the polyacrylic acid-coated cerium oxide with laccase-like activity

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