Materials Literature

文献浏览

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。

清除
第 220086 / 233918 页 · 当前展示 4,401,701–4,401,720 / 4,678,342 条匹配结果 · 摘要仅作预览

Preparation of Nanostructured Polyaniline and its Super‐Amphiphilic Behavior

Haibin Zhang、Jixiao Wang、Zhibin Zhou 等 6 位作者2007-11-02Macromolecular Rapid Communications

Abstract PANI nanofibers are prepared electrochemically by template‐free method on a stainless steel electrode. Both the hydrophilicity and the lipophilicity of the modified SS surface are enhanced by the nanostructured PANI, and a super‐amphiphilic surface is obtained in this way. The influence of polymerization cond…

Supercapacitor Materials and FabricationAdvanced Sensor and Energy Harvesting MaterialsConducting polymers and applications

Polymers from a levopimaric acid–acrylic acid Diels–Alder adduct: Synthesis and characterization

Ioan Bicu、Fănică Mustaţă2007-11-02Journal of Polymer Science Part A Polymer Chemistry

Abstract The Diels–Alder adduct of levopimaric acid with acrylic acid was efficiently prepared from resin acids. When the adduct was subjected to a dehydrodecarboxylation reaction, a ketone diacid derivative was obtained. New ketone type linear polymers were synthesized by the advanced dehyrodecarboxylation, a nonconv…

biodegradable polymer synthesis and propertiesSynthetic Organic Chemistry MethodsSynthesis and properties of polymers

Extreme values of relative permittivity and dielectric relaxation in Sr2SbMnO6ceramics

Koushik Majhi、B. Shri Prakash、K. B. R. Varma2007-11-02Journal of Physics D Applied Physics

A polycrystalline ceramic of Sr 2 SbMnO 6 (SSM) was fabricated using the powders obtained by the conventional solid-state reaction route. The dielectric measurements of the ceramic were carried out as a function of frequency (100 Hz–10 MHz) and temperature (190–360 K). SSM exhibited higher relative permittivity (∼2 ×…

Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsDielectric properties of ceramics

Colloid Probe AFM and XPS Study of Time‐Dependent Aging of Amine Plasma Polymer Coatings in Aqueous Media

Anna Tarasova、Paul Hamilton‐Brown、Thomas R. Gengenbach 等 5 位作者2007-11-02Plasma Processes and Polymers

Abstract Effects of surface oxidation on the properties of amine plasma polymer (pp) films in aqueous media have not been widely studied, despite their use to control bio‐interfacial properties. Changes in the surface composition of allylamine and heptylamine pp films, on water exposure, were followed by XPS. The surf…

Polymer Surface Interaction StudiesMolecular Junctions and NanostructuresForce Microscopy Techniques and Applications

Selective polymerization of functional monomers with Novozym 435

Martijn A. J. Veld、Anja R. A. Palmans、E. W. Meijer2007-11-02Journal of Polymer Science Part A Polymer Chemistry

Abstract Two novel monomers, ambrettolide epoxide and isopropyl aleuriteate, encompassing functional groups, were obtained in a single step from commercially available materials. Novozym 435 catalyzed ring opening polymerization of ambrettolide epoxide furnished a polymer of M n = 9.7 kg/mol and PDI = 1.9 while the ep…

Advanced Polymer Synthesis and Characterizationbiodegradable polymer synthesis and propertiesSynthetic Organic Chemistry Methods

Moiré Patterns in Superimposed Nanoporous Thin Films Derived from Block-Copolymer Assemblies

Valériy Luchnikov、Alexey Kondyurin、Petr Formánek 等 5 位作者2007-11-02Nano Letters

Nanoscale rotation moiré patterns are observed in double-layer nanoporous thin films produced with use of block-copolymer self-assembly. Periodic hexagonal moiré superstructures appear when the films possessing long-range order are superimposed at small misorientation angles. Overlapping films misoriented by angles cl…

Advanced Polymer Synthesis and CharacterizationBlock Copolymer Self-AssemblyMachine Learning in Materials Science

The role of polydispersity in the lamellar mesophase of model diblock copolymers

Nathaniel A. Lynd、Benjamin D. Hamilton、Marc A. Hillmyer2007-11-02Journal of Polymer Science Part B Polymer Physics

Abstract High‐resolution small angle X‐ray scattering (SAXS) measurements were performed on two series of poly(ethylene‐ alt ‐propylene)‐ b ‐poly( D , L ‐lactide) (PEP‐PLA) diblock copolymer materials exhibiting differences in the widths of the poly( D, L ‐lactide) block molecular mass distributions as measured by the…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesBlock Copolymer Self-Assembly

Thermal stability of SF6associated with metallic conductors incorporated in gas insulated switchgear power substations

C.T. Dervos、P. Vassiliou、J.A. Mergos2007-11-02Journal of Physics D Applied Physics

SF 6 is generally treated as thermally stable and inert for applications below 500 °C. This work investigates the thermal stability of pure SF 6 gas under 1.2 atm pressure between 200 and 450 °C in the presence of construction metals (Cu, Al), without any applied electric field. The obtained experimental results indic…

High voltage insulation and dielectric phenomenaVacuum and Plasma ArcsThermal Analysis in Power Transmission

First-principles study of the mixed oxideα−FeCrO3

Elaine A. Moore2007-11-02Physical Review B

We have investigated the electronic and magnetic properties of the mixed oxide $\ensuremath{\alpha}\text{\ensuremath{-}}\mathrm{Fe}\mathrm{Cr}{\mathrm{O}}_{3}$ and compared it to the parent oxides $\ensuremath{\alpha}\text{\ensuremath{-}}{\mathrm{Fe}}_{2}{\mathrm{O}}_{3}$ and $\ensuremath{\alpha}\text{\ensuremath{-}}{…

Advancements in Battery MaterialsMultiferroics and related materialsAdvanced Condensed Matter Physics

Preparation and Characterization of Poly(lipid)-Coated, Fluorophore-Doped Silica Nanoparticles for Biolabeling and Cellular Imaging

Muditha D. Senarath-Yapa、Sam Phimphivong、Jason W. Coym 等 6 位作者2007-11-02Langmuir

The fabrication, characterization, and implementation of poly(lipid)-coated, highly luminescent silica nanoparticles as fluorescent probes for labeling of cultured cells are described. The core of the probe is a sol-gel-derived silica nanoparticle, 65-100 nm in diameter, in which up to several thousand dye molecules a…

Advanced biosensing and bioanalysis techniquesQuantum Dots Synthesis And PropertiesAdvanced Nanomaterials in Catalysis

Optimum self-ordered nanopore arrays with 130–270 nm interpore distances formed by hard anodization in sulfuric/oxalic acid mixtures

M. Almasi Kashi、Ahmad Ramazani、Mohammad Noormohammadi 等 5 位作者2007-11-02Journal of Physics D Applied Physics

A hard anodization (HA) technique was employed using different mixtures of sulfuric/oxalic acid for fabrication of highly self-ordered alumina nanopore arrays. The sulfuric acid concentration was changed from 0.005 to 0.05 M and the anodization voltage was changed from 60 to 140 V. An optimum self-ordering was achieve…

Nanopore and Nanochannel Transport StudiesAnodic Oxide Films and NanostructuresSmart Materials for Construction

Targeted crystallisation of novel carbamazepine solvates based on a retrospective Random Forest classification

Andrea Johnston、Blair F. Johnston、Alan R. Kennedy 等 4 位作者2007-11-02CrystEngComm

Three novel crystalline solvates of the antiepileptic compound carbamazepine were obtained by targeted crystallisation from solvents identified by a Random Forest classification of solvent properties, experimental conditions and known crystallisation outcomes.

Computational Drug Discovery MethodsCrystallography and molecular interactionsCrystallization and Solubility Studies

Scientific Review: The Structure Powder Diffractometer SPODI

Markus Hoelzel、Anatoliy Senyshyn、Ralph Gilles 等 5 位作者2007-11-02Neutron News

The structure powder diffractometer SPODI at FRM II is a common project of Darmstadt University of Technology, Ludwig-Maximilians University Munich, and Technische Universität München. The main objectives of the instrument are to achieve a high Q-resolution and to provide a versatile and powerful sample environment. I…

Solid-state spectroscopy and crystallographyNuclear Physics and ApplicationsX-ray Diffraction in Crystallography

Correlation of electronic structure and martensitic transition in epitaxialNi2MnGafilms

G. Jakob、Tolga Eichhorn、M. Kallmayer 等 4 位作者2007-11-02Physical Review B

We investigate the martensitic transition of single crystalline ${\mathrm{Ni}}_{2}\mathrm{Mn}\mathrm{Ga}(110)∕{\mathrm{Al}}_{2}{\mathrm{O}}_{3}(11\overline{2}0)$ and ${\mathrm{Ni}}_{2}\mathrm{Mn}\mathrm{Ga}(100)∕\mathrm{Mg}\mathrm{O}(100)$ films using magnetometry, x-ray diffraction, x-ray absorption spectroscopy, and…

Magnetic and transport properties of perovskites and related materialsShape Memory Alloy TransformationsMultiferroics and related materials

A hybrid density functional study of zigzag SiC nanotubes

Kazi M. Alam、Asok Ray2007-11-02Nanotechnology

Using ab initio hybrid density functional theory based calculations, we report here the electronic and geometric structure properties of three different types of single-walled zigzag silicon carbide nanotube simulated by finite clusters with dangling bonds saturated by hydrogen atoms. These three types differ in the s…

Graphene research and applicationsBoron and Carbon Nanomaterials ResearchMXene and MAX Phase Materials

Computational modelling of the flow of viscous fluids in carbon nanotubes

N. Khosravian、Hashem Rafii‐Tabar2007-11-02Journal of Physics D Applied Physics

Carbon nanotubes will have extensive application in all areas of nano-technology, and in particular in the field of nano-fluidics, wherein they can be used for molecular separation, nano-scale filtering and as nano-pipes for conveying fluids. In the field of nano-medicine, nanotubes can be functionalized with various…

Carbon Nanotubes in CompositesNanopore and Nanochannel Transport StudiesNanotechnology research and applications

Decay of electric charge on corona charged polyethylene

Zhiqiang Xu、Linwen Zhang、George Chen2007-11-02Journal of Physics D Applied Physics

This paper describes a study on the surface potential decay of corona charged low density polyethylene (LDPE) films. A conventional corona charging process is used to deposit charge on the surface of film and surface potential is measured by a compact JCI 140 static monitor. The results from corona charged multilayer…

High voltage insulation and dielectric phenomenaPower Transformer Diagnostics and InsulationElectrostatic Discharge in Electronics

Evolution of the β‐propeller fold

Indronil Chaudhuri、Johannes Söding、Andrei N. Lupas2007-11-02Proteins Structure Function and Bioinformatics

beta-Propellers are toroidal folds, in which repeated, four-stranded beta-meanders are arranged in a circular and slightly tilted fashion, like the blades of a propeller. They are found in all domains of life, with a strong preponderance among eukaryotes. Propellers show considerable sequence diversity and are classif…

Protein Structure and DynamicsPhotosynthetic Processes and MechanismsEnzyme Structure and Function

Carbon nanotubes as integrative materials for organic photovoltaic devices

Vito Sgobba、Dirk M. Guldi2007-11-02Journal of Materials Chemistry

In this Highlight article we conduct a critical evaluation of recent advances in the use of carbon nanotubes (CNT) for photocurrent generation. In particular, two strategies have been described. On one hand, CNT serve as photoactive material in photovoltaic devices. Alternatively, CNT are implemented as semitransparen…

Organic Electronics and PhotovoltaicsCarbon Nanotubes in CompositesConducting polymers and applications

Aluminium doped ZnO films: electrical, optical and photoresponse studies

S. Mridha、Durga Basak2007-11-02Journal of Physics D Applied Physics

A series of Al doped ZnO (ZnO : Al) films with different Al concentrations have been deposited on glass substrates using the sol–gel spin coating technique and the effect of Al concentrations on the structural, electrical, optical and photoresponse properties have been investigated. The XRD results show the presence o…

ZnO doping and propertiesGas Sensing Nanomaterials and SensorsChalcogenide Semiconductor Thin Films