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Comprehensive study on critical micellar concentrations of sds in acetonitrile‐water solvents

04-Feb-2016 | Jana Šteflová, Martin Štefl, Sarah Walz, Michael Knop, Oliver Trapp, ELECTROPHORESIS, 2016

The critical micellar concentration (CMC) is one of the fundamental characteristics of surfactants and its determination is crucial for detail understanding of micelles formation. In this study the critical micellar concentration of sodium dodecyl sulfate (SDS) in presence of acetonitrile was ...

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Structural Properties and Charge Distribution of the Sodium Uranium, Neptunium, and Plutonium Ternary Oxides: A Combined X-ray Diffraction and XANES Study

02-Feb-2016 | Anna L. Smith; Philippe Martin; Damien Prieur; Andreas C. Scheinost; Philippe E. Raison; Anthony K. Cheetham; Rudy J ..., Inorganic Chemistry, 2016

The charge distributions in α-Na2UO4, Na3NpO4, α-Na2NpO4, Na4NpO5, Na5NpO6, Na2PuO3, Na4PuO5, and Na5PuO6 are investigated in this work using X-ray absorption near-edge structure (XANES) spectroscopy at the U-L3, Np-L3, and Pu-L3 edges. In addition, a Rietveld refinement of monoclinic Na2PuO3, in ...

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Synthesis of Sodium Complexes Supported with NNO-Tridentate Schiff Base Ligands and Their Applications in the Ring-Opening Polymerization of l-Lactide

01-Feb-2016 | Hsiu-Wei Ou; Kai-Hsuan Lo; Wei-Ting Du; Wei-Yi Lu; Wan-Jung Chuang; Bor-Hunn Huang; Hsuan-Ying Chen; Chu-Chieh Lin, Inorganic Chemistry, 2016

A series of sodium complexes bearing NNO-tridentate Schiff base ligands with an N-pendant arm were synthesized and used as catalysts for the ring-opening polymerization of l-lactide (l-LA). Electronic effects of ancillary ligands coordinated by sodium complexes substantially influence the ...

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Self-Assembly of Nanoparticle–Surfactant Complexes with Rodlike Micelles: A Molecular Dynamics Study

28-Jan-2016 | Abhinanden Sambasivam; Ashish. V. Sangwai; Radhakrishna Sureshkumar, Langmuir, 2016

The self-assembly of nanoparticles (NPs) with cationic micelles of cetyltrimethylammonium chloride (CTAC) is known to produce stable nanogels with rich rheological and optical properties. Coarse-grained molecular dynamics (MD) simulations are performed to explore the molecular mechanisms ...

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Measuring Size, Size Distribution, and Polydispersity of Water-in-Oil Microemulsion Droplets using Fluorescence Correlation Spectroscopy: Comparison to Dynamic Light Scattering

28-Jan-2016 | Mohammad Firoz Khan; Moirangthem Kiran Singh; Sobhan Sen, Journal of Physical Chemistry B, 2016

Water-in-oil microemulsion droplets (MEDs) are thermodynamically stable supramolecular structures formed in a mixture of water and oil, stabilized by surfactant layer. Here we use fluorescence correlation spectroscopy (FCS) to measure the diffusion, and the size, size distribution, and ...

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Effect of pre‐treatment of sugarcane bagasse on the cellulose solution and application for the cellulose hydrogel films

26-Jan-2016 | Kazuki Nakasone, Takaomi Kobayashi, Polymers for Advanced Technologies, 2016

Sugarcane bagasse was used as a cellulose resource, and the transparent cellulose hydrogel films were obtained from the purified cellulose by phase inversion process without chemical cross‐linking, when the dissolved cellulose in lithium chloride/N,N‐dimethyl acetamide was transformed into the ...

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Cerium Complex‐Catalyzed Oxidation of Arylmethanols under Atmospheric Pressure of Dioxygen and Its Mechanism through a Side‐On μ‐Peroxo Dicerium(IV) Complex

21-Jan-2016 | Mitali Paul, Satoru Shirase, Yuma Morimoto, Laurent Mathey, Murugesapandian Balasubramanian, Shinji Tanaka, Shinobu ..., Chemistry - A European Journal, 2016

Abstract A new CeIV complex [Ce{NH(CH2CH2N=CHC6H2‐3,5‐(tBu)2‐2‐O)2}(NO3)2] (1), bearing a dianionic pentadentate ligand with an N3O2 donor set, has been prepared by treating (NH4)2Ce(NO3)6 with the sodium salt of ligand L1. Complex 1 in the presence of TEMPO and 4 Å molecular sieves (MS4 A) ...

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Surfactant‐directed morphology of cross‐linked styrene‐ or vinylbenzyl chloride‐based materials

21-Jan-2016 | Melpo Karamitrou, Efi Sarpaki, Georgios Bokias, Journal of Applied Polymer Science, 2016

ABSTRACT Polystyrene (PSt) or poly(vinylbenzyl chloride) (PVBC) crosslinked with divinylbenzyl (DVB) materials were synthesized through free radical polymerization into templates formed by the surfactant polyoxyethylene (4) lauryl ether (Brij‐30). The chemical composition of the final products ...

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Antimicrobial silica and sand particles functionalized with an N‐halamine acrylamidesiloxane copolymer

21-Jan-2016 | Zhiming Jiang, Buket Demir, R. M. Broughton, Xuehong Ren, T. S. Huang, S. D. Worley, Journal of Applied Polymer Science, 2016

ABSTRACT The monomer 2‐acrylamido‐2‐methyl‐1‐(5‐methylhydantoinyl)propane (HA) was copolymerized with 3‐(trimethoxysilyl)propyl methacrylate (SL) and covalently attached onto silica gel and sand particles. As a result HASL copolymer‐grafted silica gel and sand particles (HASL SGPs and SPs) ...

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Effect of Dissolved Polymer on the Elasticity and Plasticity of a Lyotropic Lamellar Mesophase

14-Jan-2016 | Laure Herrmann, Patrick Kékicheff, Macromolecular Symposia, 2016

Summary Using the Surface Force Apparatus (SFA) technique, direct force–distance measurements between mica surfaces immersed in a polymer‐doped lamellar phase are presented. In the aqueous layers separating the charged and undulating bilayers of sodium dodecyl sulfate (SDS)/octanol, water is ...

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