Synthesis of<i>Moringa oleifera</i>coated silver-containing nanocomposites of a new methacrylate polymer having pendant fluoroarylketone by hydrothermal technique and investigation of thermal, optical, dielectric and biological properties

Erol, İbrahi̇m; Çiğerci, İbrahim Hakkı; Özkara, Arzu; Akyıl, Dilek; Aksu, Mecit

doi:10.1080/09205063.2022.2046986

Cited by 13 publications

(11 citation statements)

References 67 publications

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“…It can be said that the diffraction peaks of ZnO are compatible with the 36-1451 numbered JCPDS data [ 36 ]. The mean crystal size of ZnO nanoparticles was found to be 34.17 nm by the Scherrer equation [ 37 ]. From the XRD patterns of the nanocomposites, the presence of ZnO nanoparticles in the copolymer matrix was confirmed by the characteristic peaks of ZnO.…”

Section: Resultsmentioning

confidence: 99%

ZnO-containing nanocomposites produced from Mentha pulegium L. of a new HEMA-based methacrylate copolymer: improvement the thermal and antimicrobial effect

et al. 2023

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In this study, firstly, (2-oxo-2-(3,4,5-trifluoroanilino)-ethyl-2-methylprop-2-enoate) FAOEME, a methacrylate monomer with arylamide side group containing three fluorine atoms in the side branch, was synthesized. Poly(HEMA-co-FAOEME) was obtained due to radical copolymerization of FAOEME with 2-hydroxyethyl methacrylate (HEMA). Structural characterization of its copolymer with FAOEME and HEMA was performed by spectroscopy methods such as FTIR, 1 H, and 13 C-NMR. Biosynthesis of ZnO nanoparticles was carried out using Mentha Plegium L. extract. Three nanocomposites of poly(HEMA-co-FAOEME) containing biosynthesized ZnO nanoparticles were produced by hydrothermal technique, which is an environmentally friendly method. The formation of Poly(HEMA-co-FAOEME)/ZnO nanocomposites and the structural changes of the components was elucidated by SEM, XRD, and FTIR techniques. The effect of ZnO nanoparticles on the thermal properties of Poly(HEMA-co-FAOEME) was investigated by TGA and DSC techniques. The results showed that ZnO nanoparticles significantly increased the thermal stability and glass transition temperature (Tg) of the matrix (poly(HEMA-co-FAOEME). The antimicrobial properties of the materials were determined by the disk diffusion method using five different bacteria and one yeast cell. It was observed that the nanocomposites showed activity against all pathogens except one bacterial species, and the source of the activity was ZnO nanoparticles.

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Section: Resultsmentioning

confidence: 99%

ZnO-containing nanocomposites produced from Mentha pulegium L. of a new HEMA-based methacrylate copolymer: improvement the thermal and antimicrobial effect

et al. 2023

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“…The results from the TGA data showed that the nanoparticles had increased the thermal stability of the polymer matrix. Possible reasons for this finding could be: (i) that ZnO nanoparticles can act as a superior insulator and a good mass transport barrier against volatile products formed during the degradation of PFPAMA; (ii) that ZnO nanoparticles act as a delayed “crosslinking agent” for the movement of polymer chains 49 ; and (iii) that, as seen in Scheme 3, thermal stability can be increased by the strong H bonds formed between OH groups and F atoms on the surface of ZnO nanoparticles and CO and OCO groups in the PFPAMA structure.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of novel methacrylate‐based nanocomposites containing ZnO via the hydrothermal method and determination of thermal, optical, and biocidal properties

Erol

Aksu

Gürler

2022

J of Applied Polymer Sci

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In this work, the hydrothermal method was used to prepare nanocomposites of a new methacrylate polymer (PFPAMA) carrying the aryl fluoro group in the side branch and containing different mass ratios (1%, 3%, and 5%) of nano ZnO. Morphological and structural properties of the PFPAMA‐ZnO nanocomposites were determined via scanning electron microscope, transmission electron microscopy, Fourier transform infrared, ultraviolet (UV), and X‐ray diffraction, whereas the thermal properties of the nanocomposites were determined using thermogravimetric analysis (TGA) and differential scanning calorimetry techniques. The obtained results showed that the thermal stability and glass transition temperature (Tg) of the nanocomposites had increased with the increase in the amount of ZnO. Thermal degradation activation energies (Ea) of the nanocomposites were calculated via non‐isothermal TGA experiments using the Flynn–Wall–Ozawa and Kissinger–Akahira–Sunose methods. Both calculated Ea values were compatible with each other and increased in parallel with the ZnO increases. The UV measurements showed that the ZnO nanoparticles added to the PFPAMA played an important role as a UV barrier, and thus expanding the potential applications of the PFPAMA polymer. Finally, the biological activities of the PFPAMA/ZnO nanocomposites against Gram‐positive (Staphylococcus aureus) and Gram‐negative (Escherichia coli) bacteria were also tested.

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“…In addition, the LaB 6 NPs can act as crosslinking agents for polymer chains. 30 Another remarkable result in the thermograms of the NCs is related to the amount of residue they leave at 500 C. When the amount of the LaB 6 NPs in the CS-PFPAMA blend increased from 4% to 10%, the residue amount increased from 22% to 29% respectively.…”

Section: Tga Analysesmentioning

confidence: 99%

Novel bionanocomposites of chitosan‐based blend containing LaB₆: Thermal, dielectric, and biological properties

Erol

Hazman

Aksu

et al. 2023

Polymers for Advanced Techs

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In the presented study, a strategy that will offer alternative usage areas by strengthening the physicochemical properties of the green polymer chitosan (CS) is aimed.For this purpose, a compatible blend of CS (CS-PFPAMA) with poly 2-(4-fluorophenyl)-2-oxoethyl-2-methylprop-2-enoate (PFPAMA), a methacrylatebased synthetic polymer, was prepared by hydrothermal method. Miscibility and compatibility of the CS-PFPAMA blend were confirmed by the single glass transition temperature (T g ) determined by differential scanning calorimetry (DSC). Then, lanthanum hexaboride (LaB 6 ) nanoparticles (NPs) prepared by the chemical method were successfully added to the CS-PFPAMA blend at different weight ratios by hydrothermal method. Morphological characterizations of CS-PFPAMA blend and produced nanocomposites were performed with Fourier transform infrared spectroscopy, Xray diffraction, scanning electron microscope, energy-dispersive X-ray spectroscopy, and atomic force microscopy, and thermal characterizations were made with thermogravimetric analysis and DSC. The thermal stability and T g values of the obtained CS-PFPAMA blend and nanocomposites were lower than the values of the CS. However, LaB 6 NPs increased the dielectric properties of the CS-PFPAMA blend. Thus, the potential use of the produced nanocomposites in electronic devices may be in question. According to the results of antibiogram tests performed by the disk diffusion method, it was determined that nanocomposites showed a serious resistance against Escherichia coli and Staphylococcus aureus pathogens. In addition, both antioxidant and oxidant properties of nanocomposites showed values close to the reference material used. The determined biological properties indicate that the CS-based nanocomposites can be used as biomaterials.

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Synthesis ofMoringa oleiferacoated silver-containing nanocomposites of a new methacrylate polymer having pendant fluoroarylketone by hydrothermal technique and investigation of thermal, optical, dielectric and biological properties

Cited by 13 publications

References 67 publications

ZnO-containing nanocomposites produced from Mentha pulegium L. of a new HEMA-based methacrylate copolymer: improvement the thermal and antimicrobial effect

ZnO-containing nanocomposites produced from Mentha pulegium L. of a new HEMA-based methacrylate copolymer: improvement the thermal and antimicrobial effect

Synthesis of novel methacrylate‐based nanocomposites containing ZnO via the hydrothermal method and determination of thermal, optical, and biocidal properties

Novel bionanocomposites of chitosan‐based blend containing LaB₆: Thermal, dielectric, and biological properties

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Synthesis ofMoringa oleiferacoated silver-containing nanocomposites of a new methacrylate polymer having pendant fluoroarylketone by hydrothermal technique and investigation of thermal, optical, dielectric and biological properties

Cited by 13 publications

References 67 publications

ZnO-containing nanocomposites produced from Mentha pulegium L. of a new HEMA-based methacrylate copolymer: improvement the thermal and antimicrobial effect

ZnO-containing nanocomposites produced from Mentha pulegium L. of a new HEMA-based methacrylate copolymer: improvement the thermal and antimicrobial effect

Synthesis of novel methacrylate‐based nanocomposites containing ZnO via the hydrothermal method and determination of thermal, optical, and biocidal properties

Novel bionanocomposites of chitosan‐based blend containing LaB6: Thermal, dielectric, and biological properties

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Novel bionanocomposites of chitosan‐based blend containing LaB₆: Thermal, dielectric, and biological properties