Synthesis and characterisation of sulphonamide (Schiff base) ligand and its copper metal complex and their efficiency in polyurethane varnish as flame retardant and antimicrobial surface coating additives

El‐Wahab, H. Abd; El‐Fattah, M. Abd; El-alfy, H.M.Z.; Owda, Medhat E.; Lin, Long; Hamdy, Ibrahim A.

doi:10.1016/j.porgcoat.2020.105577

Cited by 30 publications

(19 citation statements)

References 24 publications

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“…Recently, [71]. The Schiff base linking unit was also reported to improve the flame retardant properties due to its thermal stability [72]. This research aimed to study the flame retardant properties of hexasubstitutd cyclotriphosphazene compounds containing two Schiff base linking units using the limiting oxygen index (LOI).…”

Section: Effect Of Linking Unit In Flame Retardancy Properties Of Cyclotriphosphazenementioning

confidence: 99%

“…ymers 2021, 13, x FOR PEER REVIEW Jamain et al worked on synthesizing a new hexasubstituted cyclotr pound with two Schiff base linking units and containing different te as shown in Figure 3 [71]. The Schiff base linking unit was also repo flame retardant properties due to its thermal stability [72]. This resea the flame retardant properties of hexasubstitutd cyclotriphosphazen taining two Schiff base linking units using the limiting oxygen index ples were prepared with 1 wt.%, and polyester resin was used as mol tained from this study reported that the LOI value increased from 22. ter resin to 24.71% when hexasubstituted cyclotriphosphazene comp rated with polyester resin.…”

Section: Effect Of Linking Unit In Flame Retardancy Properties Of Cyclotriphosphazenementioning

confidence: 99%

“…Recently, Jamain et al worked on synthesizing a new hexasubstituted cyclotriphosphazene compound with two Schiff base linking units and containing different terminal substituents as shown in Figure 3 [ 71 ]. The Schiff base linking unit was also reported to improve the flame retardant properties due to its thermal stability [ 72 ]. This research aimed to study the flame retardant properties of hexasubstitutd cyclotriphosphazene compounds containing two Schiff base linking units using the limiting oxygen index (LOI).…”

Section: Effect Of Linking Unit In Flame Retardancy Properties Of Cyclotriphosphazenementioning

confidence: 99%

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A Review on Synthesis, Structural, Flame Retardancy and Dielectric Properties of Hexasubstituted Cyclotriphosphazene

2021

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Hexachlorocyclotriphosphazene is a ring compound consisting of an alternating phosphorus and nitrogen atom with two chlorine substituents attached to the phosphorus atom. The six chlorine atoms attached to this cyclo compound can be substituted with any different nucleophile that leads to changes in different chemical and physical properties. The major topics that were investigated in this research are the flame retardancy and dielectric properties of cyclotriphosphazene compounds. Cyclotriphosphazene compounds have high potential to act as a flame retardant, and this compound consists of two active elements attributed to its high flame-retardant character. This compound also demonstrated good ability as a flame retardant due to its low toxicity and less smoke produced. In addition, cyclotriphosphazene compounds were also investigated for their dielectric properties. Cyclotriphosphazene has high potential in the electrical field since it has dielectric properties that can be widely studied in the investigation of any potential application. This review presented literature studies focused on recent research development and studies in the field of cyclotriphosphazene that focused on synthesis, structural, flame retardancy, and dielectric properties of hexachlorocyclotriphosphazene compounds.

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Section: Effect Of Linking Unit In Flame Retardancy Properties Of Cyclotriphosphazenementioning

confidence: 99%

Section: Effect Of Linking Unit In Flame Retardancy Properties Of Cyclotriphosphazenementioning

confidence: 99%

Section: Effect Of Linking Unit In Flame Retardancy Properties Of Cyclotriphosphazenementioning

confidence: 99%

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A Review on Synthesis, Structural, Flame Retardancy and Dielectric Properties of Hexasubstituted Cyclotriphosphazene

2021

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“…[ 26 ] Furthermore, a new Schiff base and its Cu metal complexes have been incorporated into polyurethane varnish and utilized as a multifunctional additive with surface‐coating applications. [ 27 ] Moreover, a Schiff base and its Co (III), Cr (III), and Fe (III) metal complexes were physically incorporated into an epoxy resin and evaluated as antimicrobial, antifouling, flame‐retardant, and corrosion‐resistant additives for paint applications. [ 28,29 ] Antimicrobial sulfonamide ligands and their metal complexes have been prepared and compared with the original ligand.…”

Section: Introductionmentioning

confidence: 99%

Cu (II), Zn (II), and Ce (III) metal complexes as antimicrobial pigments for surface coating and flexographic ink

Elsawy

Faheim

Salem

et al. 2021

Applied Organom Chemis

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Metal complexes, which were prepared from the reaction of an N‐salicylidene(4‐aminotoluene‐3‐sulfonic acid) Schiff base ligand (H2L) with Cu (II), Zn (II), and Ce (III), were characterized and confirmed by elemental analysis, molar conductance measurement, melting point, Fourier transform infrared (FT‐IR) spectroscopy, proton nuclear magnetic resonance (1H NMR), electronic spectra, magnetic susceptibility, thermal analysis, and qualitative and quantitative antimicrobial studies. The geometry of the compounds was optimized using the semiempirical PM3 Hamiltonian with Restricted Hartree–Fock (RHF) and root‐mean‐square (RMS) gradient of 0.05 kcal/mol. The ligand and its metal complexes were physically incorporated into a water‐based paint and flexographic ink formulation to study their antimicrobial properties and performances as metal‐complex pigments. The results of their performance tests further enhanced their applications as pigments. The mechanical resistance of the prepared paint and ink was also studied to evaluate the possible drawbacks that were associated with the addition of the prepared pigments. Compared with the blank sample, the studies indicated that the physical incorporation of Cu complexes slightly enhanced the mechanical properties of the painted films (the gloss values, hardness, and adhesion) and printed paper (gloss, color strength [density], and abrasion resistance) according to the American Society for Testing and Materials (ASTM). Further, regarding the antimicrobial test, the obtained results can be represented according to the following activity order: the prepared ligand > Zn complex > Ce complex > Cu complex before or after the incorporations of the paint and ink.

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“…Oxygen index was utilized to evaluate the FR properties of these added substances. [ 10–12 ] Piperidine, phosphaphenanthrene, and triazinetrione groups were simultaneously introduced into the epoxy matrix by chemical linking to get a new intumescent reactive flame retardant epoxy system. [ 13,14 ] Chlorinated, long oil, and styrenated alkyd resins were used as additives to synthetic flame retardant.…”

Section: Introductionmentioning

confidence: 99%

Novel flame retardant paint based on Co(II) and Ni(II) metal complexes as new additives for surface coating applications

Younis

Faheim

Elsawy

et al. 2020

Applied Organom Chemis

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The study is focused on the synthesis of a new Co(II) and Ni(II) metal complexes, which is synthesized by the reaction of the isatin 4-aminoantipyrine Schiff base ligand with selected divalent Co(II) and Ni(II) ions and their possible applications as flame retardant additives in paint formulations for surface coating application. The prepared metal complexes were characterized using a combination of Fourier transform infrared, elemental analysis, proton nuclear magnetic resonance, 13 C-NMR spectra, and mass spectroscopy. The prepared Schiff base ligand metal complexes were physically added to alkyd paint formulation to give coating formulations at a laboratory scale and then applied onto plywood and steel panels using a brush. The ignitability and oxygen index values obtained indicated that the paint which

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Synthesis and characterisation of sulphonamide (Schiff base) ligand and its copper metal complex and their efficiency in polyurethane varnish as flame retardant and antimicrobial surface coating additives

Abstract: This is a repository copy of Synthesis and characterisation of sulphonamide (Schiff base) ligand and its copper metal complex and their efficiency in polyurethane varnish as flame retardant and antimicrobial surface coating additives.

Cited by 30 publications

References 24 publications

A Review on Synthesis, Structural, Flame Retardancy and Dielectric Properties of Hexasubstituted Cyclotriphosphazene

A Review on Synthesis, Structural, Flame Retardancy and Dielectric Properties of Hexasubstituted Cyclotriphosphazene

Cu (II), Zn (II), and Ce (III) metal complexes as antimicrobial pigments for surface coating and flexographic ink

Novel flame retardant paint based on Co(II) and Ni(II) metal complexes as new additives for surface coating applications

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