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Showing 1 to 13 of 13 for “"Dodecylamine"”.
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Evaluation of the separation involved in recycling end-of-life (EOL) electronic equipment
… isobutyl carbinol (MIBC), while oleic acid and dodecylamine hydrochloride were investigated as representative surfactants from the anionic and cationic groups, respectively. HIPS and ABS were individually floated using these chemicals to study rates of flotation. The batch times of operation to …
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ΜΕΛΕΤΗ ΕΠΙΦΑΝΕΙΑΚΩΝ ΙΔΙΟΤΗΤΩΝ ΚΑΙ ΚΑΤΑΛΥΤΙΚΗΣ ΔΡΑΣΤΙΚΟΤΗΤΑΣ ΠΑΡΑΣΚΕΥΑΣΜΑΤΩΝ ΥΔΡΟΞΕΙΔΙΩΝ ΤΟΥ ΑΡΓΙΛΙΟΥ
… AMINES SUCH AS PROPYLAMINE, OCTYLAMINE AND DODECYLAMINE. THE PREPARED SAMPLES WERE FREEZE DRIED, A PROCESS THAT HAS THE ADVANTAGE TO OBTAIN MATERIALS WITH BETTER SURFACE PROPERTIES THAN CONVENTIONAL TECHNIQUES. OUR PURPOSE WAS TO STUDY THE INFLUENCE OF AMINE AS WELL AS THAT OF THE SOLVENT, …
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Mesoporous Functionalized Materials for Post-Combustion Carbon Dioxide Capture.
… A material prepared in the presence of dodecylamine as a template had higher surface area and narrow pore size distribution while the use of sodium dodecylbenzene sulfate resulted in formation of mesopores with wide size ranges. Accessibility of surface amine groups in silsesquioxanes …
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Synthesis and characterization of silicon nanowires, silicon nanorods, and magnetic nanocrystals
… approach where gold seeds, trisilane, and a dodecylamine were vital to the success. Dodecylamine was found to prevent gold seed coalescence at high temperatures -- creating small diameter rods -- and bond to the crystalline silicon surface -- preventing silicon nanorod aggregation. …
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Organometallic Synthesis Kinetics of CdSe Quantum Dots
… characterize synthesis kinetics in stearic acid, dodecylamine, and in trioctylphosphine oxide. The nucleation rate increased with Se concentration, while the growth rate followed the Cd concentration. Emission peak widths, emission redshift rates, nanocrystal growth rates, and reactant …
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Modeling bubble-particle interactions in flotation using hydrophobic solid surfaces
… glass sphere and a bare silica plate in dodecylamine hydrochloride (DARCl) solutions as a function of pH in an effort to simulate the forces involved in bubble-particle interactions for the quartz-amine flotation system. The appearance of the hydrophobic force in these measurements …
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Studies on the stability of thin films in bubble-particle adhesion
… interaction). For silica and mica immersed in dodecylamine hydrochloride solutions, the major driving force for film rupture is either the attractive electrostatic force or the hydrophobic interaction force, depending on the pH and the amine concentration.
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Colloidal Semiconductor Nanocrystals: A Study of the Syntheses of and Capping Structures for CdSe
… as trioctylphosphine oxide, stearic acid, dodecylamine, phenyl sulfone, aminophenyl sulfone, 4,4'dichlorodiphenyl sulfone, 4,4'difluorodiphenyl sulfone, sulfanilamide and zinc sulfide during the production to allow for further applications of quantum dots involving new chemistries of the …
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Creating long-range hydrophobic forces by coadsorption of ionic and neutral surfactants
… measure surface forces between mica surfaces in dodecylamine hydrogen chloride (DAHCI) solutions at pH 5.7 in the presence and absence of long-chain alcohols. With DAHCI alone, only "short-range" hydrophobic forces were observed with decay lengths of 1.2-1.4 nm. In the presence of octanol, long …
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Surface Forces in Thin Liquid Films
… presence of various cationic surfactants such as dodecylamine hydrochloride (DAH), and alkyltrimethylammonium chloride (CnTACl), electrolytes, and polymers. The results show that film stability and hence the kinetics of film thinning can be greatly improved by the control of bubble ζ-potentials, …
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Innovative, Platy Nano-Additives as Efficient Flame Retardants for Polymer Nanocomposites
… solvent, GO was also surface modified using 1-dodecylamine leading to a reversal of the surface charge (“Umladung”). Furthermore, the ion exchange properties of cationic/anionic clays were harnessed to design multi-component FR systems. Combinations of LDHs and hect having ions with FR …
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Molecular Engineering Approaches against Germs, Spores and Biofilm Formation
… behind spore extreme survivability by studying dodecylamine (DDA) lethal germination process as a model system; and second, to apply this newly acquired fundamental understanding in the design of new environmentally benign and easily implementable anti-spore strategies. Perhaps the most urgent …
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Unlocking the Rare Earth Elements Potential of Allanite: A Comprehensive Study of Beneficiation and Leaching
… Flotation experiments using sodium oleate and dodecylamine (DDA) as collectors demonstrated poor selectivity, suggesting that future work should focus on reverse flotation strategies and the systematic screening of more effective collectors, including potential synergistic combinations, to …