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。
We study a novel method to modify carbon nanotubes (CNT) surfaces using hydrogen and develop a composite with epoxy resin. This method is effective for functionalization of CNT surfaces and for chemical and physical interactions with other materials. The C = C/C–C ratio increased until 20 min and decreased thereafter.…
Abstract In this work, the production of continuous submicron diameter saccharide fibres is shown to be possible using the electrospinning process. The mechanism for the formation of electrospun polymer fibres is usually attributed to the physical entanglement of long molecular chains. The ability to electrospin conti…
Two monomers, 4,4′‐ bis (4‐phenoxybenzoyl)biphenyl (BPOBBP) and 4,4′‐diphenoxydiphenyl sulfone (DPODPS), were conveniently synthesized via simple synthetic procedures from readily available materials. A series of novel poly(aryl ether ketone)s containing both biphenylene moieties and sulfone linkages in the main chain…
Polycaprolactone (PCL) was covalently grafted on the surface of carbon nanotubes by a simple click reaction of propargyl-terminated PCL (propargyl-PCL) and carbon nanotubes (CNTs) containing azide groups (MWNT-N3). Propargyl-PCL was synthesized by the ring-opening polymerization of ε-caprolactone using propargyl alcoh…
Layer-by-Layer (LbL) coated microcarriers provide a multifunctional drug delivery system for therapeutic substances into specific cells. Inflammatory cells as polymorphonuclear leukocytes (PMNs) represent a particularly promising target for LbL-microcarriers transporting anti-inflammatory substances such as α1 -antitr…
Reactive blending of PET and PEN has been simulated by numerical integration of kinetic differential equations and Monte Carlo (MC) approaches. Accurate modeling of transesterification reaction at different temperatures, times, and PET/PEN feed compositions assured precise control of architecture of PET–PEN copolymer…
When fiber-reinforced ceramic-matrix composites (CMCs) are first loading to fatigue peak stress, matrix multicracking and fiber/matrix interface debonding occur. Under fatigue loading, the stress–strain hysteresis loops appear as the frictional slip occurred between the fiber and the matrix in the interface debonded r…
The structural and magnetic properties of mixed Pt-Co and Pt-Fe trimers and tetramers in the gas-phase and supported on a free-standing graphene layer have been calculated using density-functional theory. The influence of the strong magnetic moments of the 3d atoms on the Pt atoms and the influence of the strong spin-…
Abstract Pressure-induced crystallization from amorphous calcium carbonate (ACC) was observed with X-ray diffraction at room temperature. Time-resolved diffraction patterns revealed that calcite and vaterite simultaneously crystallized from ACC, without transformation from vaterite to calcite against Ostwald’s step ru…
-terminated mesogenic group 4-(6-amine-hexyloxy)-4*-cyan-biphenyl is chemically grafted onto the carboxylic groups of graphene oxide (GO) through an amidation reaction. The resultant mesogenic-group-modified GO sheets (GO-LC) are redispersed easily in common organic solvents, facilitating the structure characterizatio…
A regression model constructed by response surface methodology was employed to optimize the relationships between the cell density of microcellular polymethyl methacrylate foam and three independent variables: foaming pressure, temperature, and time. A Box–Behnken Design statistical approach was employed to fit the av…
Twin boundary spacing (TBS) plays a significant role in the yield behaviour of twinned nanowires (NWs). However, few studies have shown an overall view of the effects on the mechanical response of twinned silver NWs under tensile loading. In this article, the mechanical properties of 〈111〉-oriented NWs with different…
Titanium (Ti) and its alloys are widely used in dental applications due to the excellent corrosion resistance and mechanical properties. However, it has been reported that Ti is sensitive to fluor ions (F-) and lactic acid. Corrosion behaviour of the TiMo alloys, together with the currently used metallic biomaterial c…
Dense pellets of > 99% purity trirutile Cr2WO6 were prepared in one step from starting oxides using spark plasma sintering, leading to simultaneous reaction and consolidation in 3 min at 1473 K. The reducing environment during processing may be partly responsible for the rapid reaction time in these oxides, wit…
ABSTRACT Nanocomposite fibers consisting of isotactic polypropylene (iPP) as a matrix filled with vapor grown carbon nanofibers (VGCF) have been prepared and their fine crystalline structure and mechanical properties characterized. The obtained results point out that the VGCF oriented along the fiber extrusion directi…
Several approaches have been implemented to enhance the impact performance of natural fibre-reinforced composite structures. The control of reinforcement structure and fibre modification through treatment are among the approaches. The objective of this study was to evaluate the impact behaviour of woven coir-epoxy com…
In this work, the application of hyperbranched polyglycerol as a performance additive for water-based printing inks is demonstrated. The hyperbranched polyglycerol, (BPG), was synthesized through anionic ring-opening polymerization from glycidol using 1-butanol as the starting material. The branched structure of BPG i…
The interface between a ferroelectric Fe3O4 thin film and a semiconducting 0.05 wt. % Nb:SrTiO3 substrate was investigated by ferroelectric, pyroelectric, capacitance, transport, and nonlinear dielectric microscopy measurements. Ferroelectric polarization measurements showed that the magnetite films are ferroelectric…
A poly(ethylene terephthalate) (PET)/allylisobutyl polyhedral oligomeric silsesquioxanes (a‐POSS) nanocomposite is prepared by a solvent‐casting method and as‐received PET (asr‐PET) is modified by a precipitation method to yield precipitated PET (p‐PET). Their crystallization behaviors have been studied, and both modi…
Accurate quantum chemical calculations on real-world magnetic systems are challenging, the inclusion of electron correlation being the bottleneck of such task. One method proposed to overcome this difficulty is the embedded fragment approach. It tackles a chemical problem by dividing it into small fragments, which are…