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。
Abstract Freeze‐dried samples were prepared from dilute solutions of atactic polystyrene (a‐Ps) in benzene in a concentration range of 1 × 10 −1 to 2 × 10 −5 g/mL, and their glass transition temperatures ( T g ) were determined by differential scanning calorimetry. It was found that below a critical concentration ( C…
Abstract Summary: Polyelectrolyte multilayer microspheres were prepared by alternating adsorption of dextran sulfate and protamine on melamine formaldehyde cores followed by the partial decomposition of the core. Peroxidase and glucose oxidase were immobilized in the prepared microspheres. Retention of enzymatic activ…
Abstract Ground rubber powder (GRP) and devulcanized rubber waste obtained using the process of continuous shear flow reaction were used as both fillers and a part of rubber in virgin natural rubber (NR). The cure characteristics, swelling behavior, cross‐link density, mechanical properties, and morphology were studie…
Abstract Carbon combustion synthesis of oxides (CCSO) is a novel process to rapidly produce high‐purity, submicron, and porous powders of complex oxides. It is a modified form of self‐propagating high temperature synthesis (SHS) that uses carbon as the fuel instead of a pure metal. The CO 2 release increases the poros…
The high-energy vibrational modes of metallic carbon nanotubes are believed to be softened compared to the semiconducting ones by a Peierls-like transition. The Raman modes, when excited with a red laser to enhance the metallic tubes, were found to exhibit an exceptionally high sensitivity to electrochemical doping. O…
Abstract The rheological behaviors of in situ microfibrillar blends, including a typical semicrystalline/semicrystalline (polyethylene terephthalate (PET)/high‐density polyethylene (HDPE)) and a typical amorphous/semicrystalline (polycarbonate (PC)/HDPE) polymer blend were investigated in this study. PET and PC microf…
In this paper, we describe the synthesis and photophysical properties of a series of acridine-triarylamine redox cascades. These cascades were designed in order to promote photoinduced hole transfer from an acridine fluorophore into an adjacent triarylamine. The excited dipolar state then injects a hole into the triar…
A detailed chemical kinetic modeling investigation of n -butane and n -pentane oxidation interaction with NO to NO 2 conversion is presented. The model was validated against experiments obtained in an atmospheric-pressure, quartz flow reactor, which was used to examine the NO oxidation behavior for the temperature ran…
The Ti3+ center, based on a regular Ti site perturbed by an oxygen vacancy (VO), is identified by electron spin resonance (ESR) in textured BaTiO3 films. The center shows tetragonal symmetry along cubic ⟨100⟩ axes with g-factors: g‖=1.997, g⊥=1.904. The spectrum of this defect disappeared after the film annealing at 7…
Predicting the performance of thermoelectric materials requires precise knowledge of the Fermi surface and near-lying electronic structures. While ${\mathrm{Bi}}_{2}{\mathrm{Te}}_{3}$ is a major constituent of the active layers in commercial thermoelectric coolers, ab initio electronic structure theory heretofore has…
Water quality assessment protocols based on the use of diatoms are now well developed and their value substantiated at an international level. The use of diatoms is not designed or intended to be a “rapid” technology. The detailed level of information generated from the procedure outweighs perceived disadvantages of t…
Abstract Summary: The growth of surface‐initiated poly([2‐(methacryloyloxy)ethyl]trimethylammonium chloride) (pMETAC) brushes by ATRP was monitored by the quartz crystal microbalance technique with dissipation (QCM‐D). The change in mass of the quartz crystals starting from the adsorption of a thiol initiator monolaye…
An amphiphilic, hyperbranched polymer suitable for use in controlled drug delivery is reported. This polymer was obtained by modification of the hyperbranched aliphatic polyester Boltorn H20 (H20) with succinic anhydride and then glycidyl methacrylate, and formed nanoparticles in aqueous solution. The critical associa…
In the recent exchange of comments on the use of the term pseudopolymorph [Seddon, K. R. Cryst. Growth Des. 2004, 4, 1087; Desiraju, G. R. Cryst. Growth Des. 2004, 4, 1089−1090], the book Polymorphism in Molecular Crystals was cited. The author of the book discusses his position on the use of the term.
Abstract Summary: Low‐pressure plasma polymerization coating, as described in this paper, is an ultimately green process that uses a minimum amount of substances and produces a minimum amount of effluent and hence does not require an environmental remediation process. The super‐green aspect of the processing entirely…
Protein digestion inside the nanoreactor channels of mesoporous silica (SBA-15) is reported, and evaluated by using peptide-mass mapping. Both proteases and substrates were efficiently captured within these biocompatible nanoreactors. After 10 minutes, the mass spectrum of the protein digests released from the mesopor…
New nanoparticles based on well-defined dextran esters were prepared by a dialysis process. Dextran was converted into a propionate with a degree of substitution of 1.70 and, subsequently, acylated under homogeneous reaction conditions with a pyroglutamic acid imidazolide, which is prepared in situ by conversion of py…
We present two-terminal magnetotransport measurements on single-wall carbon nanotube devices, where one or two of the terminals are ferromagnetic. Both ferromagnetic semiconductor [(Ga,Mn)As] and metal (Fe) contact materials have been investigated. In both types of devices we have observed strong hysteretic magnetores…
Multiferroic laminated composites consisting of Terfenol-$D$/polyvinylidene-fluoride (PVDF) and lead-zirconate titanate (PZT)/PVDF particulate composite layers were prepared by a simple hot-molding technique. Magnetoelectric coefficients are characterized for the different measuring angles between the directions of po…
We study a lattice model for mode III crack propagation in brittle materials in a stripe geometry at constant applied stretching. Stiffening of the material at large deformation produces supersonic crack propagation. For large stretching the propagation is guided by well developed soliton waves. For low stretching, th…