Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
In homogeneous media, N,N-Dimethylacrylamide (DMA) was grafted copolymerization to cellulose by a metal-catalyzed atom transfer radical polymerization (ATRP) process. First, cellulose was dissolved in DMAc/LiCl system, and it reacted with 2-bromoisobutyloyl bromide (BiBBr) to produce macroinitiator (cell-BiB). Then DM…
Octanoylalaninato-metal (metal = calcium(II), yttrium(III), lanthanum(III), and zinc(II)) complexes were prepared and the first three metal complexes were found to readily form transparent and stable molecular glasses from methanol and chloroform solutions. The process of glass formation from solution was studied in d…
This paper reports the results of microwave sintering (without post‐sintering annealing) on the microstructure, phase assemblage, and properties of 8 mol% (PSZ—partially stabilized zirconia), and 16 mol% (FSZ—fully stabilized zirconia) MgO‐alloyed zirconia. For the PSZ samples sintered at 1585°C, a maximum densificati…
The direct synthesis of CdSe nanoparticles inside the core of PS-P4VP micellar structures has been utilized for the easy fabrication of 2-D CdSe nanoparticle arrays with variable sizes on a solid substrate.
New liquid-crystalline materials are described, which are obtained using a versatile synthetic methodology that employs the intermediacy of 1,2,4-triazines. Triazines, triazine-N-oxides, pyridine and laterally cyanated pyridines are among the compounds reported and the mesomorphism of the different structures shows ho…
The formation of materials with controllable morphologies is of great significance both in science and technology. In this paper, a new method for controlling the morphology of materials is introduced: the chemical effects and the geometric restriction of the template are both utilized for determining the shape of gro…
Electronic structure and optical properties of ZnO doped with carbon have been investigated by using density functional theory based on first-principles ultrasoft pseudopotential method. The calculated results show that there is a significant difference in electronic structures between the cases of C substituting O an…
Within the overall understanding of the glass transition, the relationship between microscopic dynamics and fragility is still to be clarified. Decalin is an organic glass former, for which a cis/trans mixture exhibits the highest known degree of fragility in a molecular system. It is therefore an ideal system for the…
In recent years, biodegradable plastics which have low effect on environment have been developed. However, many of them have lower mechanical properties than conventional engineering plastics. Reinforcing them with a natural fiber is one of reinforcing methods without a loss of their biodegradability. In the present s…
Homoleptic gallium tris(alkoxides) [Ga(OR)3]2 were prepared by the reaction of [Ga(NMe2)3]2 (1) and excess ROH (R = CH2CH2NMe2 (2), CH(CH3)CH2NMe2 (3), C(CH3)2CH2OMe (4), CH2CH2OMe (5)) in toluene at room temperature. Compounds 2–5 were isolated as colourless oils. The side-products, [Ga(OCH2CH2NMe2)2Cl] (6), [Ga(OCH(…
Firstly, hydrotalcite (HT) was synthesized by the urea method. Then, sodium methyl allyl sulfonate (SMAS) was used as intercalation agent to prepare intercalated HT (SMAS–HT). Finally, a novel poly(acrylic-co-acrylamide)/HT nanocomposite superabsorbent was prepared by inverse suspension polymerization, using N,N′-meth…
Purpose: In the following paper there have been the properties of the MCMgAl12Zn1, MCMgAl9Zn1, MCMgAl6Zn1, MCMgAl3Zn1magnesium cast alloy as-cast state and after a heat treatment presented. Design/methodology/approach: A casting cycle of alloys has been carried out in an induction crucible furnace using a protective s…
El grafeno es un nuevo material nanometrico bidimensional, obtenido en 2004 por exfoliacion micrometrica del grafito. Es una hojuela cuasiplana con pequenas ondulaciones, dando la apariencia de un panal de abejas, con un grosor de un atomo de carbono (0.1nm). Su produccion esta, hasta hoy, restringida a nivel laborato…
We present a study of the magnetic properties of a mixed ferro-ferrimagnetic ternary alloy of the type AB p C 1-p on a cubic lattice consisting of three different Ising spins S A = 3 2 , S B = 2, and S C = 5 2 . We employ the meanfield approximation and Monte Carlo simulation to find the compensation temperatures of t…
amine-functionalized 我酣睡的硅石材料经由 tetraethoxysilane 的合作冷凝作用反应和 organoalkoxysilanes 的三种类型被准备：3-aminopropyl-trimethoxysilane， n-(2-aminoethyl )-3-aminopropyltrimethoxysilane, 和 3-(2-(2- aminoehtylamino ) 乙醇氨基) propyl-trimethoxysilane。Cetyltrimethylammonium 溴化物作为一个模板被使用形成毛孔。amine-functionalized 的比表面积和毛孔体积我酣睡的硅石材料用表面区域和毛孔尺寸…
Abstract Thermal induced spin transitions between low- and high-spin states of Fe(II) complexes are commonly observed in the solid state. Cooperative effects, such as abrupt and two-step spin crossover, are typical for these objects and arise from intermolecular interactions described by several formalisms. These phen…
Spherical gold nanoparticles (3-5 nm) undergo a surprising fragmentation without extra energy input and are converted into ultrasmall particles (less than 1.5 nm), which is a direct result of electron transfer between gold nanoparticles and cysteine.
The development of reference materials for toxicology and metrology is a critical component in establishing testing strategies and methods for human health hazard assessment of nanoparticles. A UK-based project (REFNANO) employed a workshop-based process to identify a priority list of candidate reference materials to…
The electronic structures of SrCu2O2 and PbCu2O2 have been studied by density functional theory calculations in conjunction with high resolution X-ray photoemission spectroscopy (XPS) and electron paramagnetic resonance spectroscopy (EPR). In both materials there is linear O–Cu–O coordination and a band of Cu 3d state…
The synthesis and characterization of bent-core liquid crystals which incorporate TTF groups is reported; different bent-core mesophases are induced depending on the molecular structure and properties derived from their compact packing have been studied.