Results 11 to 20 of about 20,444 (199)

Recent advances in the application of quaternary ammonium compounds in biomedical materials

open access: yes口腔疾病防治, 2019
Microbial infections affect people worldwide. Quaternary ammonium salts serve antibacterial, antifungal,antiviral, anti⁃matrix metalloproteinase and polymerization functions. While the modification of biomaterials with quater⁃ nary ammonium salts cannot
JIAO Yang, CHEN Jihua
doaj   +2 more sources

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

A Salt-Resistant Sodium Carboxymethyl Cellulose Modified by the Heterogeneous Process of Oleate Amide Quaternary Ammonium Salt. [PDF]

open access: yesPolymers (Basel), 2022
In this study, hydrophobic quaternary ammonium intermediate was synthesized by epichlorohydrin (ECH) and oleamide propyl dimethyl tertiary amine (PKO).
Jia Z   +7 more
europepmc   +2 more sources

Preparation, Characterization and Biocidal Efficiency of A Quaternary Ammonium Salt

open access: yesInternational Journal of Advances in Chemistry, 2016
A quaternary ammonium salts (QAS) was synthesized from trialkylamine reacting with a halocarbon compound. This QAS was characterized by analytical methods of precipitation and spectroscopic determinations. QAScan damage marine life by killing one-celled plants to destroy their growth systems, and the prepared QAS therefore was used in biocidal ...
Shao Song Huang   +7 more
openaire   +3 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

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

Enantioselective Synthesis of Acyclic Orthogonally Functionalized Compounds Bearing a Quaternary Stereocenter Using Chiral Ammonium Salt Catalysis

open access: yesChemistryOpen, 2021
We herein report an asymmetric protocol to access a series of orthogonally functionalized acyclic chiral target molecules containing a quaternary stereogenic center by carrying out the enantioselective α‐alkylation of novel orthogonally functionalized ...
Katharina Röser   +3 more
doaj   +1 more source

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