Articles with "cationic surfactants" as a keyword



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Synergism and Performance for Systems Containing Binary Mixtures of Anionic/Cationic Surfactants for Enhanced Oil Recovery

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Published in 2017 at "Journal of Surfactants and Detergents"

DOI: 10.1007/s11743-016-1892-x

Abstract: The surfactant structure–performance relationship and application properties in enhanced oil recovery (EOR) for binary mixtures of anionic and cationic surfactants are presented and discussed. A polyoxyethylene ether carboxylate anionic surfactant was blended with a quaternary… read more here.

Keywords: anionic cationic; binary mixtures; enhanced oil; mixtures anionic ... See more keywords
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Novel Quaternary Ammonium-Based Cationic Surfactants: Synthesis, Surface Activity and Evaluation as Corrosion Inhibitors for C1018 Carbon Steel in Acidic Chloride Solution

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Published in 2017 at "Journal of Surfactants and Detergents"

DOI: 10.1007/s11743-017-1947-7

Abstract: A novel class of quaternary ammonium-based cationic surfactants is synthesized and characterized via spectroscopic methods (FTIR, 1H NMR and 13C NMR). The surface properties, foaming power and biodegradability of the synthesized cationic surfactants are determined… read more here.

Keywords: surface; carbon steel; corrosion; cationic surfactants ... See more keywords
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Cationic surfactants as a non-covalent linker for oxidised cellulose nanofibrils and starch-based hydrogels.

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Published in 2020 at "Carbohydrate polymers"

DOI: 10.1016/j.carbpol.2019.115816

Abstract: Rheological properties of hydrogels composed of TEMPO-oxidised cellulose nanofibrils (OCNF)-starch in the presence of cationic surfactants were investigated. The cationic surfactants dodecyltrimethylammonium bromide (DTAB) and cetyltrimethylammonium bromide (CTAB) were used to trigger gelation of OCNF… read more here.

Keywords: ocnf starch; oxidised cellulose; cationic surfactants; cellulose nanofibrils ... See more keywords
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Effect of branched chain and polyoxyethylene group on surface dilational rheology of cationic surfactants

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Published in 2019 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"

DOI: 10.1016/j.colsurfa.2019.05.063

Abstract: Abstract The measurements of dynamic surface tensions and surface dilational rheological properties were carried out for four cationic surfactants aqueous solutions, hexadecanol glycidyl ether ammonium chloride (C16PC), guerbet alcohol hexadecyl glycidyl ether ammonium chloride (C16GPC),… read more here.

Keywords: chain; surface; cationic surfactants; polyoxyethylene ... See more keywords
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Cationic surfactants modulate aqueous micellization and wetting on PTFE by Triton X-100: Effect of alkyl chainlength, headgroup and counterion

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Published in 2017 at "Journal of Molecular Liquids"

DOI: 10.1016/j.molliq.2017.05.138

Abstract: Abstract Micellization of several cationic surfactants in aqueous solution and their adsorption characteristics on polytetrafluoroethylene (PTFE) surface were studied using scattering and wettability methods. The obtained results indicate that the micelle size/shape and wettability depended… read more here.

Keywords: alkyl; triton 100; counterion; effect ... See more keywords
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Synthesis, assessment and corrosion protection investigations of some novel peptidomimetic cationic surfactants: Empirical and theoretical insights

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Published in 2020 at "Journal of Molecular Liquids"

DOI: 10.1016/j.molliq.2020.113672

Abstract: Abstract Three novel peptidomimetic cationic surfactants were synthesized in good yields. The chemical configurations of these surfactants were clarified using 1H, 13C NMR and FT-IR spectroscopy. The inhibition capacity and adsorption performance of these compounds… read more here.

Keywords: protection; novel peptidomimetic; peptidomimetic cationic; cationic surfactants ... See more keywords
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Tissue Distribution of Several Series of Cationic Surfactants in Rainbow Trout (Oncorhynchus mykiss) Following Exposure via Water

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Published in 2020 at "Environmental Science & Technology"

DOI: 10.1021/acs.est.9b07600

Abstract: Bioaccumulation assessment is important for cationic surfactants in light of their use in a wide variety of consumer products and industrial processes. Because they sorb strongly to natural surfaces and to cell membranes, their bioaccumulation… read more here.

Keywords: bioaccumulation; water; cationic surfactants; rainbow trout ... See more keywords
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Enhancement of the Transdermal Delivery of Nonsteroidal Anti-inflammatory Drugs Using Liposomes Containing Cationic Surfactants

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Published in 2022 at "ACS Omega"

DOI: 10.1021/acsomega.2c03039

Abstract: New hybrid liposomes based on cationic amphiphiles with different structures of the head group (cetyltrimethylammonium bromide (CTAB), 3-hexadecyl-1-hydroxyethylimidazolium bromide (IA-16(OH)), 1-(butylcarbamoyl)oxyethyl-3-hexadecylimidazolium bromide (IAC 16(Bu)), and hexadecylmethylpyrrolidinium bromide (PR-16)) were developed for transdermal administration of nonsteroidal… read more here.

Keywords: nonsteroidal anti; anti inflammatory; enhancement transdermal; transdermal delivery ... See more keywords
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Promoting Synechocystis sp. PCC 6803 Harvesting by Cationic Surfactants: Alkyl-Chain Length and Dose Control for the Release of Extracellular Polymeric Substances and Biomass Aggregation

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Published in 2018 at "ACS Sustainable Chemistry & Engineering"

DOI: 10.1021/acssuschemeng.8b04776

Abstract: Development of an efficient biomass-harvesting technology for microalgae would achieve cost and energy savings in large-scale microalgae biomass cultivation. Cationic surfactants could improve biomass harvesting, but determining the optimal type and dose of surfactant requires… read more here.

Keywords: chain length; biomass; biomass harvesting; cationic surfactants ... See more keywords

Predicting the aggregation number of cationic surfactants based on ANN-QSAR modeling approaches: understanding the impact of molecular descriptors on aggregation numbers

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Published in 2022 at "RSC Advances"

DOI: 10.1039/d2ra06064g

Abstract: In this work, a quantitative structure–activity relationship (QSAR) study is performed on some cationic surfactants to evaluate the relationship between the molecular structures of the compounds with their aggregation numbers (AGGNs) in aqueous solution at… read more here.

Keywords: aggregation; molecular descriptors; aggregation numbers; aggregation number ... See more keywords
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Fluorescence Study of the Influence of the Structure and Hydrophobicity of Fluorescent Dyes and Cationic Surfactants on their Association in Aqueous Solutions

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Published in 2020 at "Australian Journal of Chemistry"

DOI: 10.1071/ch20221

Abstract: The statistical characteristics of the dependences of the fluorescence signal of analytical systems as a function of the integral parameters of the structure of fluorescent reagents and cationic surfactants on their association in aqueous solutions… read more here.

Keywords: fluorescence; structure; surfactants association; cationic surfactants ... See more keywords