Materials Literature
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The synthesis and mesomorphic properties of a series of 1,2-phenylene bis[4-(4-alkyloxyphenylazo)benzoates] are reported. The mesophases exhibited by these bent-shaped azo compounds are identified as nematic, smectic A and crystal E phases. All these compounds have fairly low transition temperatures, and so are suitab…
Abstract An algorithm for the calculation of electronic g tensors from configuration interaction (CI) wave functions and its implementation for any ground‐state spin S is described. The algorithm can be used together with either single‐ or multireference CI wave functions but assumes a spatially nondegenerate ground s…
The mechanistic model of uniform CO corrosion is presented which covers: electrochemical reactions at the steel surface, diffusion of species between the metal surface and the bulk including diffusion through porous surface films, migration due to establishment of potential gradients and homogenous chemical reactions…
Colloids, phases, interfaces Emulsions - properties and production Microemulsions, vesicles and liposomes Foams Production and properties of colloid suspensions and dispersions Solids Rheology Solubility parameters Solubility, crystallization Purification, detergency Cosmetics Pharmaceutical technology Food formulatio…
The corrosion of zinc in (HNO3 + H 3 PO 4 ) binary acid mixture containing ethanolamine, diethanolamine and triethanolamine has been studied. In plain mix acid, corrosion increases with concentration of acid and with the temperature. At constant acid concentration, the inhibition efficiency of ethanolamine, diethanola…
The promoting effect of CeO2 in a Cu/CeO2 catalyst for CO oxidation and NO reduction compared to CuO and Cu/ZrO2 is deduced to be based on lowering of redox potentials of copper species in the Cu/CeO2 matrix in relation to CuO and Cu/ZrO2.
Thioethers were used as adsorbates for preparing gold nanoparticles. Different thioether derivatives having from 1 to 4 thioether functionalities were synthesized. Colloids were prepared in a two-phase system, and characterized by 1H NMR and transmission electron microscopy (TEM). The stability of colloids protected b…
Poly(ethylene terephthalate) (PET) and cotton fibres, treated in an appositely set up RF SF6 plasma reactor under different operating conditions, were characterised by XPS, EPR, DSC, XRD, ATR analyses, water contact angle and water droplet roll-off angle measurements. The ageing of plasma-treated samples was also inve…
A new series of CuCoZnAl layered double hydroxides (LDHs) with various Cu/Co atomic ratios were synthesized by a coprecipitation method at constant pH ≈ 9. The effects of Co on the structural properties and reducibility of both as-synthesized and calcined materials were investigated thoroughly by employing powder X-ra…
Space charge in crosslinked polyethylene (XLPE) has been detected under both ac and dc fields. Its role in electrical aging and breakdown is recognized, but not deeply understood. It is thought that identification of the trapping centers in this material would help improve the modeling of conduction and electrical agi…
Hydrogen peroxide is a ‘green’ oxidant whose relatively high cost has prevented it from being applied to commodity chemical processing. In large part, those attributes of the current process (the anthraquinone route) that contribute to the cost of H2O2 also contribute to its non-sustainable features; by-product stream…
Coating strategies for corrosion protection considering intrinsically electronic conducting polymers have become important mainly because of restrictions on the use of heavy metals due to their environmental problems. This work presents the electrochemical behavior of an acrylic blend formed by sulfonate-doped polyani…
The micellar-like particle systems produced from poly-D,L-lactide-poly(ethylene glycol) (PLA-PEG) copolymers have been assessed using a range of physicochemical characterisation methods, followed by in vivo studies of their biodistribution after intravenous administration to the rat. The size of the PEG chain was kept…
Treatment of dichloro- and dicarboxylato-tin(IV) porphyrins with K2CO3 in THF–H2O (4 ∶ 1) is a mild and highly efficient method for formation of dihydroxotin(IV) porphyrins; unlike other reported procedures, this method is especially good for lipophilic porphyrins and bis-porphyrins. The synthesis of the mixed metal d…
Two new copper(II) complexes, derived from an end-to-end azido linker and two different tridentate Schiff base ligands, have been synthesised and their crystal structures determined by X-ray diffraction methods. They are the single azido-bridged [Cu(L1 − H)(μ-1,3-N3)] n(H2O)2n (1) chain and the dinuclear [Cu2(L2)2(μ-1…
Under mild hydrothermal conditions the novel thioantimonate(III) [Ni(C4H13N3)2]2Sb 4S8 was synthesised using elemental nickel, antimony and sulfur; the structure is composed of cyclic isolated [Sb4S8]4− anions and [Ni(C4H13N3)2]2+ cations.
The mono-chain L-alanine derivatives self-assemble into bilayer aggregates in a number of organic liquids and gelatinize the liquids.
BACKGROUND: Compared with free drug, sterically stabilized liposomal drug has prolonged circulation time and, thereby, higher tumor selectivity and antitumor activity. The stability in plasma is an important consideration in the formulation of clinically useful liposomal drug. A Phase I study of a stable liposomal dox…
The piezoelectric and dielectric constants for Pb(Mg1/3Nb2/3)O3–PbTiO3 (PMN–PT, 70/30) films with different orientations were measured. PMN–PT films were deposited on Pt(111)-passivated silicon substrates using a modified sol–gel process. The room temperature dielectric constants K for the {100}-oriented films were 25…
Chloromethylated poly(styrene) and chloropropylated silica gel have been reacted with α,ω-diamines to give diamine modified catalyst supports which have then been covalently attached to iron(III) tetrakis(pentafluorophenyl)porphyrin (FeTF5PP). In this way the diamino groups provide a simple linker/spacer unit between…