Results 31 to 40 of about 20,590 (293)

Quaternary Ammonium Salt-Based Cross-Linked Micelles to Combat Biofilm [PDF]

open access: yes, 2019
Due to self-produced extracellular polymeric substances (EPS), biofilms are hard to eradicate by common antimicrobials. Herein, a new quaternary ammonium salt based cross-linked micelle (QAS@CM) was created to combat biofilms.
Fangqin Liu (6325115)   +4 more
core   +1 more source

Effect of a Quaternary Ammonium Salt on Propylene Carbonate Structure in Slit-Shape Carbon Nanopores [PDF]

open access: yes, 2016
Effect of a Quaternary Ammonium Salt on Propylene Carbonate Structure in Slit-Shape Carbon ...
Sumio Ozeki (1648699)   +7 more
core   +1 more source

Azobenzene Based Photo-Responsive Hydrogel: Synthesis, Self-Assembly, and Antimicrobial Activity

open access: yesGels, 2022
A new azobenzene-based symmetric amphiphile was synthesized and characterized using 1H NMR spectroscopy. Its self-assembly behavior as well as photo-responsive behavior in its solution and gel states were investigated.
Runmiao Yang   +3 more
doaj   +1 more source

Triphase catalysis in epoxidation of α,β-enones with polymer bound quaternary ammonium salt [PDF]

open access: yes, 2000
A polymer bound quaternary ammonium salt, prepared from DABCO and Merrifield resin, catalyzed an epoxidation of a variety of α,β-enones with aqueous ...
Vijaya Anand, R., Singh, Vinod K.
core   +1 more source

Correlation and Prediction of Thermodynamic Properties for Quaternary Ammonium Salt Types by Applying the Modified Nonelectrolyte UNIQUAC-NRF Model [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
The osmotic and activity coefficients of quaternary ammonium salt types are correlated and predicted by applying a modified nonelectrolyte UNIQUAC-NRF equation.
Ali Hosseini Eghbal   +1 more
doaj   +1 more source

Synthesis of Nanostructural Silica Using Quaternary Ammonium Salt of Lignin as Template [PDF]

open access: yes, 2010
Cationic surfactant, quaternary ammonium salt of lignin, was synthesis from the lignin and trimethylamine though Mannich Reaction. Then quaternary ammonium salt of lignin was used as a novel template to prepare nanostructural silica from TEOS by sol-gel ...
Fang Dan Yu   +3 more
core   +1 more source

Complicated synergistic effects between three corrosion inhibitors for Q235 steel in a CO2-saturated 3.5 wt% NaCl solution

open access: yesInternational Journal of Electrochemical Science, 2019
The corrosion inhibition of a one-component inhibitor, a bicomponent inhibitors and a three-component inhibitor consisting of 4-methylpyridine quaternary ammonium salt (PQ), quinoline quaternary ammonium salt (QQ) and thiourea (TU) for Q235 steel in a ...
Junlei lang   +7 more
doaj   +1 more source

Highly Enantioselective Dimerization of α,β-Enones Catalyzed by a Rigid Quaternary Ammonium Salt [PDF]

open access: yes, 2016
The chiral quaternary ammonium salt 1 served as a phase-transfer catalyst for the enantioselective dimerization of α,β-enones, providing a route for the asymmetric syntheses of chiral 1,5-dicarbonyl compounds and α-alkylated γ-keto ...
Fu-Yao Zhang (2707912)   +1 more
core   +1 more source

Synthesis and Characterizaion of Adamantane-Containing Quaternary Ammonium Salts [PDF]

open access: yes, 2011
To develop the potential use of adamantane derivatives in surfactant field, the adamantyl residue was introduced into the quaternary ammonium salt. The method involved synthesizing N-(1-adamantyl)-N, N-dimethylamine from 1-adamantine and quaternizing ...
Nian Yun Guan   +4 more
core   +1 more source

(2S,NS)-N-Allyl-N-benzyl-1-hydroxy-3-(4-hydroxyphenyl)-N-methylpropan-2-aminium bromide

open access: yesActa Crystallographica Section E, 2008
The title compound, C20H26NO2+·Br−, is an N-chiral quaternary ammonium salt synthesized from (2S*)-N-benzyl-N-methyltyrosine methyl ester. The dihedral angle between the phenyl ring and the benzene ring is 11.61 (19)°.
Hua-Fang Wu   +4 more
doaj   +1 more source

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