Results 11 to 20 of about 993,421 (290)

Mutagenic activity of quaternary ammonium salt derivatives of carbohydrates

open access: yesBeilstein Journal of Organic Chemistry, 2016
This paper presents a study on a series of quaternary ammonium salt (QAS) derivatives of glucopyranosides with an elongated hydrophobic hydrocarbon chain.
Barbara Dmochowska   +4 more
doaj   +2 more sources

Antibacterial Activity of Quaternary Ammonium Salt from Diethylaminoethyl Methacrylate [PDF]

open access: yesE-Journal of Chemistry, 2010
A quaternary ammonium salt was synthesized from diethylaminoethyl methacrylate (DEAEMA) by quaternization with hexadecyl bromide. The resultant compound (Am-h) was characterized by FTIR and NMR spectroscopy.
Makhloufia Mohammed   +3 more
doaj   +2 more sources

Selective Recognition of Quaternary Ammonium Cations [PDF]

open access: yes, 2023
Selective recognition of ammonium cations fundamentally relies on their degree of substitution. In biological systems, proteins can preferentially bind more substituted ammonium cations over less substituted homologues.
Abby, Haworth   +11 more
core   +2 more sources

Synthesis of Castor Oil-Based Quaternary Ammonium Salt and Modification of Attapulgite for Treating Industrial Wastewaters. [PDF]

open access: yesMaterials (Basel), 2023
In order to develop multifunctional quaternary ammonium salts and explore their advantages as modifiers for wastewater treatment, castor oil-based quaternary ammonium salts were synthesised and subsequently used as modifiers for attapulgite treatment ...
Yan X   +5 more
europepmc   +2 more sources

Switchable quaternary ammonium transformation leading to salinity-tolerance-conferring plant biostimulants [PDF]

open access: yes, 2023
Since their discovery by Menshutkin in 1890, quaternary ammonium salts have been synthesized by alkylating tertiary amines, with the development of new synthetic methods having received limited attention.
Tomoko, Hirano   +3 more
core   +2 more sources

Preparation of Quaternary Ammonium Gemini Surfactant and Its Application in Insulator Cleaning [PDF]

open access: yesE3S Web of Conferences, 2023
In this paper, quaternary ammonium salt type Gemini surfactant G12 was designed and synthesized, and its structure was characterized by infrared and nuclear magnetic resonance.
Wan Xinyuan   +6 more
doaj   +1 more source

Controllable synthesis of silver nanowires via an organic cation‐mediated polyol method and their application as transparent electrode for touch screen

open access: yesNano Select, 2022
As an organic cation, quaternary ammonium salt was introduced as a control agent to synthesize silver nanowires. The important influence of quaternary ammonium salt on the preparation of silver nanowires was seriously investigated by varying the length ...
Huangqing Ye   +7 more
doaj   +1 more source

Adsorption and Aggregation Behavior of Mixtures of Quaternary-Ammonium-Salt-Type Amphiphilic Compounds with Fluorinated Counterions and Surfactants

open access: yes, 2021
The surface adsorption and aggregation behavior of a mixture of quaternary-ammonium-salt-type amphiphilic monomeric compounds (C4 FSA, C8 FSA, and C4 NTf2) or gemini compounds (C10-2-C4 FSA) and various surfactants (nonionic hexaoxyethylene dodecyl ether
Risa Kawai (494245)   +5 more
core   +1 more source

Copper Corrosion inhibition by a Quaternary Ammonium Salt-assisted Benzotriazole [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
Quaternary ammonium salt (QAS) Hyamine 1622 and benzotriazole (BTAH) were used to form a protective layer on copper surface to resist the corrosion by immersing the copper into the inhibitors-containing solutions. The inhibitor’s anticorrosion properties
Chuanyun Wan, Xiaotao Li, Hao Xing
doaj   +1 more source

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