Relevant bibliographies by topics / Cationic surfactant CPC

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Cationic surfactant CPC'

Author: Grafiati
Published: 11 December 2022
Last updated: 31 July 2025

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Journal articles on the topic "Cationic surfactant CPC"

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Sakač, Nikola, Dubravka Madunić-Čačić, Dean Marković, et al. "The 1,3-Dioctadecyl-1H-imidazol-3-ium Based Potentiometric Surfactant Sensor for Detecting Cationic Surfactants in Commercial Products." Sensors 22, no. 23 (2022): 9141. http://dx.doi.org/10.3390/s22239141.

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A low-cost and fast potentiometric surfactant sensor for cationic surfactants, based on the new ion-pair 1,3-dioctadecyl-1H-imidazol-3-ium-tetraphenylborate (DODI-TPB), is presented. The new cationic surfactant DODI-Br was synthesized and characterized by NMR, LC-MS, and elemental analysis, and was used for synthesis of the DODI-TPB ionophore. The DODI-TPB surfactant sensor was obtained by implementation of the ionophore in PVC. The sensor showed excellent response characteristics with near-Nernstian slopes to the cationic surfactants DMIC, CPC, CTAB, and Hyamine 1622. The highest voltage resp
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Glumac, Nada, Milan Momčilović, Iztok Kramberger, et al. "Potentiometric Surfactant Sensor with a Pt-Doped Acid-Activated Multi-Walled Carbon Nanotube-Based Ionophore Nanocomposite." Sensors 24, no. 8 (2024): 2388. http://dx.doi.org/10.3390/s24082388.

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Two new surfactant sensors were developed by synthesizing Pt-doped acid-activated multi-walled carbon nanotubes (Pt@MWCNTs). Two different ionophores using Pt@MWCNTs, a new plasticizer, and (a) cationic surfactant 1,3-dihexadecyl-1H-benzo[d]imidazol-3-ium-DHBI (Pt@MWCNT-DHBI ionophore) and (b) anionic surfactant dodecylbenzenesulfonate-DBS (Pt@MWCNT-DBS ionophore) composites were successfully synthesized and characterized. Both surfactant sensors showed a response to anionic surfactants (dodecylsulfate (SDS) and DBS) and cationic surfactants (cetylpyridinium chloride (CPC) and hexadecyltrimeth
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Kishi, Kazuki, Amane Ichimura, Zhang Shuai, Yu Otsuka, Tatsuya Morozumi, and Koji Yamada. "Alginic Acid Beads Containing Fluorescent Solvatochromic Dyes Display an Emission Color Response to a Cationic Surfactant." Polymers 14, no. 21 (2022): 4649. http://dx.doi.org/10.3390/polym14214649.

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Lipophilic fluorescent dyes can be employed as sensors for surfactants present in concentrations above the critical micellar concentration (CMC) where the dyes are monodispersed in micelles. However, the surfactant concentration range over which these dyes are effective is narrowed because by the sigmoidal nature of their responses. To overcome this limitation, we developed a novel sensor material comprised of a labeled fluorescent solvatochromic dye covalently bonded to alginate gel, which is known to strongly adsorb cationic surfactants. We hypothesized that the dye-alginate conjugate would
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Sakač, Nikola, Dean Marković, Bojan Šarkanj, et al. "Direct Potentiometric Study of Cationic and Nonionic Surfactants in Disinfectants and Personal Care Products by New Surfactant Sensor Based on 1,3-Dihexadecyl−1H-benzo[d]imidazol−3-ium." Molecules 26, no. 5 (2021): 1366. http://dx.doi.org/10.3390/molecules26051366.

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A novel, simple, low-cost, and user-friendly potentiometric surfactant sensor based on the new 1,3-dihexadecyl−1H-benzo[d]imidazol−3-ium-tetraphenylborate (DHBI–TPB) ion-pair for the detection of cationic surfactants in personal care products and disinfectants is presented here. The new cationic surfactant DHBI-Br was successfully synthesized and characterized by nuclear magnetic resonance (NMR), Fourier transform infrared (FTIR) spectrometry, liquid chromatography–mass spectrometry (LC–MS) and elemental analysis and was further employed for DHBI–TPB ion-pair preparation. The sensor gave excel
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Huang, Jin-Hui, Yong Zhao, Guang-Ming Zeng, et al. "Micellar-enhanced ultrafiltration for the solubilization of various phenolic compounds with different surfactants." Water Science and Technology 72, no. 4 (2015): 623–31. http://dx.doi.org/10.2166/wst.2015.257.

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Micellar-enhanced ultrafiltration (MEUF) was applied to the separation of phenolic compounds p-nitrophenol (PNP), p-chlorophenol (PCP), p-cresol (PC) and phenol (P) from effluents using a hydrophilic polyethersulfone ultrafiltration membrane. Cationic cetylpyridinium chloride (CPC), nonionic TX-100 and anionic sodium dodecyl benzene sulfonate (SDBS) were chosen as the surfactants. Several important parameters, i.e. the separation efficiency, the distribution coefficient of phenolic compounds and the removal ratio of surfactants, were investigated. It was shown that the separation efficiency an
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Yusaf, Amnah, Muhammad Usman, Muhammad Siddiq, et al. "Mixed Micellar Solubilization of Naphthol Green B Followed by Its Removal from Synthetic Effluent by Micellar-Enhanced Ultrafiltration under Optimized Conditions." Molecules 27, no. 19 (2022): 6436. http://dx.doi.org/10.3390/molecules27196436.

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In this manuscript, the application of cetyltrimethylammonium bromide (CTAB) and cetylpyridinium chloride (CPC) for the removal of Naphthol Green B (NGB) as a synthetic effluent has been studied. The solubilization of NGB by a single and mixed micellar system using Triton X-100 (TX-100) as a nonionic surfactant has been performed to establish both the extent of the partitioning (kx) of NGB and ultimately their respective Gibbs free energies ΔGp as well. An applied methodology, micellar-enhanced ultrafiltration (MEUF), has also been studied in different micellar media of cationic surfactants by
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Kim, B. K., K. Baek, and J. W. Yang. "Simultaneous removal of nitrate and phosphate using cross-flow micellar-enhanced ultrafiltration (MEUF)." Water Science and Technology 50, no. 6 (2004): 227–34. http://dx.doi.org/10.2166/wst.2004.0380.

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The feasibility of cross-flow micellar-enhanced ultrafiltration (MEUF) was investigated to remove nitrate and phosphate simultaneously. At the above critical micelle concentration (CMC), a cationic surfactant added in wastewater forms micelles, which have positive charge on their surface. Anionic contaminants such as nitrate and phosphate can be bound on the micelles by electrostatic interaction, and the micelle-pollutants complex is removed effectively by ultrafiltration. In this study, a cross-flow MEUF system was designed and investigated the feasibility of MEUF for field application. A cat
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Aramaki, Kenji, Eriko Takimoto, and Takumi Yamaguchi. "Effect of the Cationic Head Group on Cationic Surfactant-Based Surfactant Mediated Gelation (SMG)." International Journal of Molecular Sciences 21, no. 21 (2020): 8046. http://dx.doi.org/10.3390/ijms21218046.

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The surfactant-mediated gelation (SMG) method allows us to formulate hydrogels using a water-insoluble organogelator. In this study, we formulated hydrogels using three cationic surfactants, hexadecyltrimethylammonium bromide (CTAB), hexadecyltrimethylammonium chloride (CTAC), and hexadecylpyridinium chloride (CPC)] and an organogelator (12-hydroxyoctadecanoic acid (12-HOA), and studied their structures and mechanical properties. A fiber-like structure similar to that found in the 12-HOA-based organogels was observed by optical microscopy. Small- and wide-angle X-ray scattering profiles showed
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Sokolova, Tatiana A., Anna A. Burmistrova, and Sergey Yu Doronin. "Analytical reactions of 2,4-dinitrophenylhydrazine with some aldehydes in micelles of cationic surfactants." Izvestiya of Saratov University. Chemistry. Biology. Ecology 23, no. 3 (2023): 262–71. http://dx.doi.org/10.18500/1816-9775-2023-23-3-262-271.

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The analytical effect of micelles of cationic surfactants in the reactions of some aromatic aldehydes (AA) with 2,4-dinitrophenylhydrazine (DNPH) with the formation of the corresponding aci-forms of hydrazones has been established. It has been established that micelles of nonionic and anionic surfactants do not cause analytically significant effects in the system under study. Analytical characteristics of systems DNPH–AA– cationic surfactant (molar absorption coefficients (ε), ranges of determined contents, limits of detection) were determined, using the example of benzaldehyde and its nitro-,
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Azum, Naved, Malik Abdul Rub, Sulaiman Yahya Alfaifi, and Abdullah M. Asiri. "Interaction of Diphenhydramine Hydrochloride with Cationic and Anionic Surfactants: Mixed Micellization and Binding Studies." Polymers 13, no. 8 (2021): 1214. http://dx.doi.org/10.3390/polym13081214.

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The focus of the present work is to evaluate the interactions of an anti-allergic drug (diphenhydramine hydrochloride, DPH) with anionic (sodium dodecyl sulfate, SDS) and cationic (cetylpyridinium chloride, CPC) surfactants in the aqueous medium. The mixed micellization behavior and surface properties of drug-surfactant mixtures have been examined by surface tension measurements. Various theoretical approaches were applied to explore the synergistic or non-ideal behavior of the current mixed systems. Furthermore, the binding studies of drug with surfactants have been elaborated by UV–visible s
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Dissertations / Theses on the topic "Cationic surfactant CPC"

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Che, Ibrahim Shariff. "Treatment of oily and dye wastewater with modified barley straw." Thesis, Curtin University, 2010. http://hdl.handle.net/20.500.11937/589.

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Barley straw, an agricultural byproduct, was identified as a potential adsorbent material for wastewater treatment as it offers various advantages such as abundant availability at no or very low cost, little processing cost and ability to biodegradation. The raw barley straw, however, needs to be modified as a preliminary study showed less favorability of the raw barley straw in removing oil and anionic dyes. Barley straw was chemically pretreated with sodium hydroxide and modified using a cationic surfactant, hexadecylpyridinium chloride monohydrate (CPC).Generally, the treatment with NaOH in
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Norton, Dean Stephen. "Capillary Electrochromatography-Mass Spectrometry (CEC-MS) of Surfactants." Digital Archive @ GSU, 2007. http://digitalarchive.gsu.edu/chemistry_diss/13.

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This research presents advancements in the coupling of capillary electrochromatography (CEC) to mass spectrometry (MS) for the analysis of different chemical classes of surfactants. Chapter 1 provides a brief introduction that summarizes the mechanics and fundamentals of CEC, including instrumentation and applications for CEC-MS. Chapter 2 describes the on-line hyphenation of a packed CEC column with an internally tapered tip coupled to electrospray ionization-mass spectrometry (ESI-MS) and atmospheric pressure chemical ionization-mass spectrometry (APCI-MS) for the analysis of betaine-type am
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Šojdrová, Kamila. "Studium interakcí biopolymer - tenzid pomocí mikrokalorimetrie a metod rozptylu světla." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2018. http://www.nusl.cz/ntk/nusl-376838.

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Biopolymer surfactant systems have been studied by using different physico chemical methods. As the biopolymer, it was chosen high (1400–1600 kDa), medium (250–450 kDa) and low (8–15 kDa) molecular weight sodium hyaluronate. Two cationic surfactants – cetyltrimethylammonium bromide (CTAB) and carbethopendecinium bromide (Septonex) were selected to provide polyelectrolyte complexes with oppositely charged hyaluronan. The critical aggregation concentration of the surfactant in the system was monitored by dynamic light scattering (Zetasizer Nano ZS). SEC-MALS method was used for the description o
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Guidetti, Giulia. "Cellulose photonics : designing functionality and optical appearance of natural materials." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/277918.

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Cellulose is the most abundant biopolymer on Earth as it is found in every plant cell wall; therefore, it represents one of the most promising natural resources for the fabrication of sustainable materials. In plants, cellulose is mainly used for structural integrity, however, some species organise cellulose in helicoidal nano-architectures generating strong iridescent colours. Recent research has shown that cellulose nanocrystals, CNCs, isolated from natural fibres, can spontaneously self-assemble into architectures that resemble the one producing colouration in plants. Therefore, CNCs are an
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Book chapters on the topic "Cationic surfactant CPC"

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Obi, Chidi, and Mary-Ann N. Mgbemena. "Review on Development and Application of Eco-Benign Surfactants." In Surfactants - Fundamental Concepts and Emerging Perspectives. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.110867.

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The development of eco-benign surfactants is the foundation of ingredients utilized in the pharmaceutical, laundry, household, and personal-care cleaning products. The types of surfactants, such as anionic, cationic, nonionic, zwitterionic, properties, toxicity, and thermodynamic feasibilities, are reviewed. The properties, such as critical micelle concentration (CMC), Kraft temperature, critical packing parameter (CPP), and foaming form the basis of solubility of these surfactants in reaction mixtures. The critical micelle concentration (CMC) is the fundamental concentration at which micelle
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Garikoé, Issaka, and Boubié Guel. "Solid-State Synthesis of Organoclays: Physicochemical Properties and Application for Bisphenol A Removal from Aqueous Solutions." In Nanoclay - Recent Advances, New Perspectives and Applications [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.107503.

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The solid-state intercalation of organoclays, by using surfactants bromide salts (n-C12H25(CH3)3NBr, n-C14H29(CH3)3NBr, n-C16H33(CH3)3NBr and n-C12H25)2(CH3)2NBr) at different levels of the cation exchange capacity (CEC), was reported. According to XRPD data, the basal spacing of the smectite phase unit cell increased systematically up to >38 Å at 2.0-CEC of surfactants loading, indicating that they entered into the smectite interlayers and were arranged parallel to the layers at low concentrations and nearly vertical at high ones. Organoclays FTIR spectra showed a drop in the water band in
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Conference papers on the topic "Cationic surfactant CPC"

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Jovancicevic, V., S. Ramachandran, Y. S. Ahn, and B. A. M. Oude Alink. "Corrosion Inhibition and Drag Reduction in Multiphase Flow." In CORROSION 2001. NACE International, 2001. https://doi.org/10.5006/c2001-01052.

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Abstract Two model surfactant corrosion inhibitors, cetyltrimethylammonium chloride (CTAC) and cetylpyridinium chloride (CPC) were chemically modified to drag reducing agents by exchange of the chloride with salicylate counterion. The modified surfactants (cation exchanged) and the corresponding halides were compared in a corrosion test under conditions were drag reduction occurred. Drag reduction promoted corrosion inhibition in standard corrosion test.
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Ribeiro, Carlos A. A., Thais B. Fagundes, Gaspar Darin Filho, Patricia H. L. S. Matai, and Jean V. Ferrari. "Study of Corrosion of ABNT/AISI 1020 Steel in Surfactant Waterflooding Scenario." In LatinCORR 2023. AMPP, 2023. https://doi.org/10.5006/lac23-20537.

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Abstract Surfactant flooding can be one of the chemical-enhanced oil recovery methodologies (CEOR) applied during well production over time by reducing the oil-water interfacial tension and changing the rock's wettability. Surfactants, being surface-active agents, have also been studied with the function of film-forming corrosion inhibitors; however, at low concentration approaches, usually up to the critical micelle concentrations (CMC), around 1 mg/L to 100 mg/L. This work may contribute to studies about the anti-corrosive performance of such chemicals in waterflooding scenarios, which can i
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Bello, Ayomikun, Alexander Rodionov, Anastasia Ivanova, and Alexey Cheremisin. "Experimental Investigation and Molecular Dynamics of the Fluid-Fluid Interactions Between Binary Surfactant Systems for EOR." In GOTECH. SPE, 2024. http://dx.doi.org/10.2118/219237-ms.

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Abstract This work aims to explore the properties and interactions between binary surfactant systems. We employed a methodology comprising experimental analysis, mathematical modeling, and molecular dynamics simulations. In the experimental study, we examined eight individual surfactants and six binary surfactant systems at various ratios to determine their critical micelle concentrations (CMCs), using reservoir oil and performing experiments at reservoir conditions. Then, Rubingh's Regular Solution Theory (RST) was applied to evaluate interactions within the binary surfactant mixtures. Finall
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Adila, Ahmed S., Mahmoud Aboushanab, Ahmed Fathy, and Muhammad Arif. "An Experimental Investigation of Surface Chemistry of Rocks in the Presence of Surfactants." In GOTECH. SPE, 2024. http://dx.doi.org/10.2118/219143-ms.

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Abstract Surfactant flooding is a well-known chemical enhanced oil recovery (cEOR) technique. However, surfactant surface chemistry and the associated interactions with rock surfaces are complex and have not been fully investigated. Here, we experimentally investigate the surface chemistry of 15 rock surfaces (10 carbonate and 5 sandstones) upon interaction with different types of surfactants, including cationic, anionic, non-ionic, and zwitterionic surfactants at different concentrations (before, at, and after the critical micelle concentration, CMC). The rock samples were examined using Scan
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Lokanathan, Manojkumar, Himanshu Sharma, Mostafa Shabaka, Vaibhav Bahadur, and Kishore Mohanty. "Comparing Electrowettability and Surfactants As Tools for Wettability Enhancement on a Hydrophobic Surface." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-10483.

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Abstract Wettability alteration has significant applications in microfluidics, energy production and process engineering. Surfactants have been widely used for wettability alteration on surfaces. More recently, electrowetting (EW) has emerged as a powerful microfluidic technique to dynamically alter wettability. EW relies on the application of an electrical potential difference across a dielectric layer on which the fluid rests. This work analyzes the extent of wettability enhancement of water droplets on a hydrophobic surface (in air) via the use of surfactants and EW. Nine surfactants were c
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Mićić, Svetlana, Jelena Rupar, Aleksandra Janošević Ležaić, and Nataša Pejić. "EFFECT OF QUERCETIN ON MICELAR PROPERTIES OF CETYLTRIMETHYLAMMONIUM BROMIDE IN ETHANOL-WATER MIXTURES: A CONTUCTIVITY STUDY." In 17th International Conference on Fundamental and Applied Aspects of Physical Chemistry. Society of Physical Chemists of Serbia, 2024. https://doi.org/10.46793/phys.chem24i.089m.

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Investigation of the micellization of cationic surfactant, cetyltrimethylammonium bromide (CTAB) in the presence of flavonoidquercetin (QR) was performed by conductance method. Specific conductivity data of CTAB + QR system in mixed ethanol-water solvent (10, 20 and 30% v/v) were obtained by increasing the CTAB concentration, whereas the QR concentration was kept constant at T = 27 °C. It was found that the critical micelle concentration (CMC) increased with increasing ethanol percentage in water. Moreover, two CMC values (CMC1 and CMC2) of CTAB, in the absence and presence of QR, were determi
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Jin, Jun, Yingcheng Li, Weidong Zhang, et al. "Research on High-Performance Surfactant Blend for Microemulsion-Based SP Flooding at 100°C for High Water Cut Reservoir." In SPE Conference at Oman Petroleum & Energy Show. SPE, 2025. https://doi.org/10.2118/224933-ms.

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Abstract This study addresses the challenge of recovering oil in the VIII+IX Reservoir in Shuanghe oil field in Henan Province, China, a mature reservoir with a 91% water cut and a temperature as high as 100°C. The objective is to develop a cost-effective surfactant blend with ultra-high interfacial efficiency and strong interactions with heavy oil fractions, aiming to enhance recovery where conventional methods are inadequate. The surfactant blend was developed through molecular design, adjusting structural parameters such as carbon chain length, polymerization degree, and the ratio of anioni
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Shi, Xundan, Choongyong Han, Christian Wolfsteiner, Yih-Bor Chang, and Baris Güyagüler. "Methods to Improve Accuracy and Performance in a Fully Implicit Surfactant Flood Simulator." In SPE Improved Oil Recovery Conference. SPE, 2022. http://dx.doi.org/10.2118/209447-ms.

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Abstract Saturation distributions exhibiting unphysical "checkerboard" patterns, time-step size sensitivity, and slow convergence in certain instances are observed in a fully implicit surfactant simulator that is based on an industry-wide accepted formulation. In this paper, we discuss methods to address each of the above conditions and hereby achieve a robust algorithm with favorable convergence characteristics. The proposed remedies are result of in-depth studies of the physics of micro-emulsion appearance and disappearance as well as detailed analysis of the numerical convergence difficulty
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Mattsson, Rosa, Johan Sterte, and Lars Ödberg. "Colloidal Stability of Alkyl Ketene Dimer (AKD) Dispersions. Influence of Shear, Electrolyte Concentration, Poly-electrolytes and Surfactants." In The Science of Papermaking, edited by C. F. Baker. Fundamental Research Committee (FRC), Manchester, 2001. http://dx.doi.org/10.15376/frc.2001.1.393.

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The influence of shear, electrolytes, polyelectrolytes (anionic trash), and surfactants on the colloidal stability of differently formulated AKD dispersions was investigated. The stability was tested under shear in a Britt Dynamic Drainage Jar by measuring particle size distributions and microelectrophoretic mobilities. Three cationic dispersions were used, stabilised with (1) starch with low charge density, (2) starch with medium charge density and a polyaluminum salt, (3) synthetic polymer with high charge density. All dispersions showed good to excellent stability to high levels of shear an
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