Results 21 to 30 of about 20,590 (293)
Characterization and Solution Properties of Quaternary-Ammonium-Salt-Type Amphiphilic Gemini Ionic Liquids [PDF]
, 2019 Quaternary-ammonium-salt-type amphiphilic gemini compounds (Cm-2-Cn X, where m and n represent the alkyl chain lengths; m = 4, 6, 8, 10; n = 2, 4, 6, 8, 10; m ≥ n; and X indicates the counterion BF4, PF6, OTf, FSA, or NTf2) were synthesized by the ...
Risa Kawai (494245) +2 more
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ChemistryOpen, 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
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Copper Corrosion inhibition by a Quaternary Ammonium Salt-assisted Benzotriazole [PDF]
Archives 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
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XRD Study of Hydrophlogopite Intercalated with Alkyl Quaternary Ammonium Salt [PDF]
, 2010 Hydrophlogopite was modified with sodium and then organically intercalated with a series of alkyl quaternary ammonium salts. The organically intercalated samples were characterized by X-ray diffraction analysis (XRD) and the effect of alkyl quaternary ...
Tong Jiang Peng +3 more
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Química Nova, 2012 Quaternary ammonium salts are the corrosion inhibitors most frequently used by the oil industry. In this study, the ultraviolet fluorescence technique was evaluated for the analysis of a quaternary ammonium salt in water as a corrosion inhibitor.
Herllaine de Almeida Rangel +1 more
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Durable Antimicrobial Finishing of Nylon Fabrics with Acid Dyes and a Quaternary Ammonium Salt [PDF]
, 2001 A new finishing method of preparing durable antimicrobial nylon fabrics, developed recently, uses acid dyes as bridges to link antimicrobial agents such as quaternary ammonium salts to synthetic fabrics.
Young Hee Kim, Gang Sun
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Palladium‐Catalyzed Direct C−H Arylation of Arenes Promoted by Quaternary Ammonium Salt [PDF]
, 2020 A new Pd-based catalytic system for the direct C-H arylation of arenes was developed. The use of a substoichiometric amount of quaternary ammonium salt as an additive with a Pd source achieved the direct arylation of unactivated arenes under milder ...
Sabyuk Yang +3 more
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Fabrication of bamboo fiber-based adsorbent by radiation grafting and rapid adsorption of phosphate
Fushe yanjiu yu fushe gongyi xuebao, 2021 Quaternary ammonium salt modified bamboo fiber was prepared by radiation grafting of methacryloxyethyltrimethyl ammonium chloride on the bamboo fiber. The modified bamboo fiber was characterized by scanning electron microscopy, Fourier transform infrared
DU Jifu, DONG Zhen, YANG Xin, ZHAO Long
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Antibacterial activity of gemini quaternary ammonium salts [PDF]
FEMS Microbiology Letters, 2013 A series of gemini quaternary ammonium salts (chlorides and bromides), with various hydrocarbon chain and spacer lengths, were tested. These compounds exhibited antibacterial activity against both Gram-positive and Gram-negative bacteria and were not mutagenic.
Ewa, Obłąk +3 more
openaire +2 more sources
Multilayered Curcumin-Loaded Hydrogel Microcarriers with Antimicrobial Function
Molecules, 2022 The design of multifunctional microcarriers has attracted significant attention because they combine various functions within a single system. In this study, we developed a set of multilayered hydrogel microcarriers, which were first loaded with ...
Weronika Szczęsna +6 more
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