Interaction of Anionic Sulfonate Gemini Surfactant with PEO-PPO-PEO Triblock Copolymers
نویسندگان
چکیده
منابع مشابه
Preparation of echinoid-like aggregated hematite particles by forced hydrolysis with PEO-PPO-PEO triblock copolymers
Sub-micrometre sized hematite particles with a controlled structure were prepared by forced hydrolysis of a Fe(NO3)3·9H2O aqueous solution in the presence of poly(alkylene oxide) triblock copolymer (Pluronic P123). The resulting particles show an echinoid-like shape and a narrow size distribution. After removal of the polymer by calcination at 500 C for 3 h, the resulting particles show a retai...
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The solubilization of hydrocarbons by micelles formed of diblock and symmetric triblock copolymers in water are compared in the framework of a mean-field theory of solubilization. The block copolymers contain poly(ethylene oxide) as the hydrophilic block and poly(propylene oxide) as the hydrophobic block and are designated as EXPYEX or EWPZ (where E and P denote ethylene and propylene oxides an...
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We study the adsorption of a symmetric triblock copolymer of ethylene oxide, EO, and propylene oxide, PO, end-capped with quarternized poly(2-dimethylaminoethyl methacrylate), DMAEMA (DMAEMA(24)-EO(132)PO(50)EO(132)-DMAEMA(24)). Light scattering and tensiometry are used to measure the relative size of the associated structures and surface excess at the air-liquid interface. The adsorbed amount,...
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In situ lateral force microscopy (LFM) and X-ray photoelectron spectroscopy (XPS) were used to probe the lubrication behavior of an aqueous solution of poly(oxyethylene)-poly(oxypropylene)-poly(oxyethylene) (PEO-PPO-PEO) symmetric triblock copolymer on thin films of polypropylene (PP), polyethylene (PE), and cellulose. LFM experiments were carried out while the substrates were immersed in water...
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The phase behavior of poly(ethy1ene oxide) poly(propy1ene oxide) poly(ethy1ene oxide), PEO-PPO-PEO, tri-block copolymers dissolved in water has been studied using small-angle neutron scattering, using a Couette device for shear alignments. The structural properties has been studied as a function of polymer concentration and temperature. At low-temperature and low polymer concentrations the unim...
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ژورنال
عنوان ژورنال: Acta Chimica Sinica
سال: 2014
ISSN: 0567-7351
DOI: 10.6023/a13111118