Articles with "phosphonic acid" as a keyword



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Phosphonic acid functionalized siloxane crosslinked with 3‐glycidoxyproyltrimethoxysilane grafted polybenzimidazole high temperature proton exchange membranes

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Published in 2017 at "Journal of Applied Polymer Science"

DOI: 10.1002/app.44818

Abstract: Phosphonic acid functionalized siloxane cross-linked with 3-glycidoxypropyltrimethoxysilane (GPTMS) grafted polybenzimidazole (PBI) membranes are prepared by sol–gel process. The structure of the membranes is characterized by Fourier-transform infrared spectroscopy and X-ray diffraction spectroscopy. SEM images of… read more here.

Keywords: acid functionalized; proton; grafted polybenzimidazole; phosphonic acid ... See more keywords
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Evaluation of the herbicide glyphosate, (aminomethyl)phosphonic acid, and glyphosate‐based formulations for genotoxic activity using in vitro assays

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Published in 2023 at "Environmental and Molecular Mutagenesis"

DOI: 10.1002/em.22534

Abstract: Glyphosate, the most heavily used herbicide world‐wide, is applied to plants in complex formulations that promote absorption. The National Toxicology Program reported in 1992 that glyphosate, administered to rats and mice at doses up to… read more here.

Keywords: phosphonic acid; glyphosate; aminomethyl phosphonic; glyphosate based ... See more keywords
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Phosphonic acid: A long-standing and versatile crop protectant.

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Published in 2020 at "Pest management science"

DOI: 10.1002/ps.6156

Abstract: Phosphonic acid-based fungicides, also referred to as phosphonates, have been used extensively as crop protectants in horticulture since the late 1970s, and more recently in native ecosystems and forestry. Discovering that phosphonates are effective against… read more here.

Keywords: standing versatile; long standing; phosphonic acid; crop ... See more keywords
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Synthesis of (4-nitro-1H-indol-6-yl)- and (4-amino-1H-indol-6-yl)phosphonic acid derivatives

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Published in 2018 at "Chemistry of Heterocyclic Compounds"

DOI: 10.1007/s10593-018-2387-7

Abstract: A convenient methodology for the synthesis of previously unreported (1H-indol-6-yl)phosphonic acid derivatives has been described. Reaction of (4-methyl-3,5-dinitrophenyl)phosphonates with dimethylformamide dimethyl acetal leads to the respective enamines that can be readily converted into indoles by… read more here.

Keywords: indol phosphonic; indol; nitro indol; indol amino ... See more keywords
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Dual basic ionic liquid as a catalyst for synthesis of (2-amino-3-cyano-4H-chromen-4-yl) phosphonic acid diethyl ester and its molecular docking study

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Published in 2019 at "Research on Chemical Intermediates"

DOI: 10.1007/s11164-019-03981-3

Abstract: A series of (2-amino-3-cyano-4H-chromen-4-yl) phosphonic acid diethyl ester derivatives were synthesized from salicylaldehyde, malononitrile and triethylphosphite in ethanol/water (1:1) system using a new dual basic ionic liquid, i.e., 1-[3-(dimethylamino)propyl]-1,4-diazabicyclo[2.2.2]octan-1-ium hydroxide at ambient temperature. The attractive… read more here.

Keywords: cyano chromen; diethyl ester; amino cyano; chromen phosphonic ... See more keywords
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Phosphonic acid vs phosphonate metal organic framework influence on mild steel corrosion protection

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Published in 2019 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2019.143734

Abstract: Abstract Phosphonate metal organic frameworks synthesized starting from a 1:1 ratio of corresponding nitrate and vinylphosphonic acid (VP) in hydrothermal conditions were analyzed by FTIR, X-Ray powder diffraction, elemental analysis and thermogravimetric analysis. The ability… read more here.

Keywords: surface; phosphonic acid; metal organic; phosphonate metal ... See more keywords
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Novel proton exchange membranes based on sulfonated poly (ether-ether-ketone)/phosphonic acid-functionalized siloxane

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Published in 2020 at "Chemical Physics"

DOI: 10.1016/j.chemphys.2019.110594

Abstract: Abstract Novel sulfonated poly (ether-ether-ketone)/phosphonic acid-functionalized siloxane composite proton exchange membranes were prepared by sol-gel method using sulfonated poly (ether-ether-ketone) as the matrix and phosphonic acid-functionalized siloxane as the crosslinking agent. Phosphonic acid functionalized siloxane… read more here.

Keywords: acid functionalized; phosphonic acid; acid; sulfonated poly ... See more keywords
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Separation of trivalent rare earths from chloride medium using solvent extraction with heptylaminomethyl phosphonic acid 2-ethylhexyl ester (HEHHAP)

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Published in 2019 at "Hydrometallurgy"

DOI: 10.1016/j.hydromet.2019.06.002

Abstract: Abstract A novel extractant heptylaminomethyl phosphonic acid 2-ethylhexyl ester (HEHHAP, abbreviated as H2L2) was synthesized for the extraction and separation of trivalent rare earths (REs: La ~ Lu, plus Y) from chloride medium. The results… read more here.

Keywords: ester hehhap; ethylhexyl ester; separation trivalent; phosphonic acid ... See more keywords
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A facile solvent-free and one-step route to prepare amino-phosphonic acid functionalized hollow mesoporous silica nanospheres for efficient Gd(III) removal

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Published in 2020 at "Journal of Cleaner Production"

DOI: 10.1016/j.jclepro.2019.118688

Abstract: Abstract Gadolinium is known to be a most widely used but toxic rare-earth element, and Gd(III) ions exist in aqueous media will bring about serious damage to the ecosystem. However, few work on the application… read more here.

Keywords: adsorption; mesoporous silica; phosphonic acid; silica nanospheres ... See more keywords
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Influence of monomer reactivity on radiation grafting of phosphorus flame retardants on flax fabrics

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Published in 2019 at "Polymer Degradation and Stability"

DOI: 10.1016/j.polymdegradstab.2019.05.025

Abstract: Abstract Flax fabrics were modified by radiation grafting method to improve their flame retardancy. Several phosphonated monomers with different carbon-carbon double bond reactivity were grafted. According to 1H NMR carried out on irradiated monomers solubilized… read more here.

Keywords: phosphorus; flax fabrics; phosphonic acid; reactivity ... See more keywords
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Phosphonic acid-based membranes as proton conductors prepared by a pulsed plasma enhanced chemical vapor deposition technique

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Published in 2018 at "Thin Solid Films"

DOI: 10.1016/j.tsf.2018.06.059

Abstract: Abstract Among the electrolyte membranes for proton conduction in hydrogen production systems and fuel cells, phosphonic acid-based membranes are promising because of their advantage as good proton conductors in anhydrous medium which allows their use… read more here.

Keywords: acid based; plasma; membranes proton; deposition ... See more keywords