Results 21 to 30 of about 2,252 (202)
The influence of cationic surfactant removal on the thermal stability of organoclays [PDF]
, 2006 The microstructure, thermal stability, surface energy and swelling characteristics of two kinds of commercial organoclays, before and after washing treatment with a mixture of H2O/ethanol, were investigated using X-ray diffraction (XRD ...
He, Hongping +3 more
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Plants, 2022 Plant monoterpenes have received attention for their ecological functions and as potential surrogates for synthetic herbicides, but very little is known about the processes that govern their behavior in the soil environment, and even less about the ...
Jose Antonio Galán-Pérez +3 more
doaj +1 more source
Adsorption of p-nitrophenol on organoclays A thermoanalytical study [PDF]
, 2013 In this study, organoclays were prepared through ion exchange of a single cationic surfactant, hexadecyltrimethylammonium bromide and characterised by a range of methods including X-ray diffraction (XRD) and thermogravimetric analysis.
Park, Yuri +3 more
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Química Nova, 2011 The major applications of organoclays are in adsorption of organic polluents. The objective of this work was the synthesis and characterization of organoclays using differents amounts of cationic surfactant hexadecyltrimethylammonium bromide.
Christian Wittee Lopes +5 more
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A X-ray photoelectron spectroscopy study of HDTMAB distribution within organoclays [PDF]
, 2007 X-ray photoelectron spectroscopy (XPS) in combination with X-ray diffraction (XRD) and high-resolution thermogravimetric analysis (HRTG) has been used to investigate the surfactant distribution within the organoclays prepared at different surfactant ...
Wood, B. J. +11 more
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PVA Nanocomposites Of Organoclays Obtained Using Different Cationic Surfactants
Journal of the Turkish Chemical Society, Section A: Chemistry, 2018 This study is about preparation of two different organoclays with cationic surfactants and their poly(vinyl alcohol) nanocomposites with increased thermal and mechanical behavior.
Cüneyt H. Ünlü +4 more
doaj +1 more source
Influence of clay surfactants polarity on the crystallization and rheological behavior of nanocomposites of PDLLA [PDF]
Materials Research, 2018 The effect of clay hydrophobicity on the cold crystallization and rheological properties of nanocomposites of poly(D,L-lactic acid) (PDLLA) was investigated. Crystallization was evaluated by DSC for isothermal and non-isothermal conditions.
Renata Brandão Brito Ramos +2 more
doaj +1 more source
Photostabilization of the Herbicide Norflurazon by Using Organoclays [PDF]
Journal of Agricultural and Food Chemistry, 2000 Photostable formulations of the herbicide norflurazon [4-chloro-5-(methylamino)-2-(alpha,alpha, alpha-trifluoro-m-tolyl)pyridazin-3-(2H)-one] were achieved by adsorbing it on pillared clay or on montmorillonite preadsorbed with the organic cation thioflavin T (TFT).
Undabeytia López, Tomás +3 more
openaire +3 more sources
The influence of organic modification on the structural and adsorptive properties of bentonite clay and its application for the removal of lead [PDF]
Science of Sintering, 2013 Organic modification of mineral clay using the monomer ethenyl acetate was performed. The exchange of inorganic interlayer clay cations was achieved using the cationic surfactant Genamine CTAC and Asepsol.
Stojiljković S. +7 more
doaj +1 more source
Organoclay Derivatives in the Synthesis of Macrocycles
Angewandte Chemie International Edition, 2001 As an alternative to the rotaxane method, an organoclay can be used as a template for the efficient formation of macrocycles (ring in schematic representation) which are easily extracted from the clay interlayer space. The four-step synthesis involved preparation of a pillared clay from the dihydrochloride salt of p-xylylenediamine, insertion of ...
Georgakilas, V. +2 more
openaire +3 more sources