Ke Zeng、Sixun Zheng2009-04-15Macromolecular Chemistry and Physics
Abstract Organic/inorganic polyrotaxanes were synthesized via Huisgen 1,3‐dipolar cycloaddition between 3‐azidapropylhepta(3,3,3‐tri fluoro propyl) POSS and dialkyne‐terminated PEO/ α ‐cyclodextrin polypseudorotaxanes. The organic/inorganic hybrid polyrotaxanes were characterized by means of 1 H NMR spectroscopy and W…
Supramolecular Chemistry and ComplexesLuminescence and Fluorescent MaterialsSilicone and Siloxane Chemistry
Yi Zeng、Tong Zhang、Wuyou Fu 等 12 位作者2009-04-15The Journal of Physical Chemistry C
Large-scale uniform nutlike ZnO microcrystals are successfully synthesized via a facile hydrothermal process. Field emission scanning electron microscopy and transmission electron microscopy results reveal that the as-prepared ZnO products have average lengths of 2.2 μm and diameters of 1.8 μm, possessing a wurtzite s…
ZnO doping and propertiesQuantum Dots Synthesis And PropertiesGa2O3 and related materials
Kaushik Mallick、Mike J. Witcomb、Mike Scurrell 等 4 位作者2009-04-15Journal of Physics D Applied Physics
An in situ one pot synthesis route is described for the preparation of a gold–polyaniline nanocomposite material by polymerization of aniline hydrochloride using HAuCl 4 as the oxidant. The resultant composite material was characterized by various techniques. The temperature-dependent electrical conductivity values we…
Electrochemical sensors and biosensorsAdvanced Sensor and Energy Harvesting MaterialsConducting polymers and applications
Jie Wang、Yun-Jiang Wang2009-04-15Journal of Applied Physics
First-principles method is used to investigate the structural, mechanical, and electronic properties of 5d transition metal diborides MB2 (M=Re, W, Os, Ru). Our calculations show hexagonal ReB2 and WB2 have much larger elastic moduli and tensile shear strengths than orthorhombic OsB2 and RuB2. The elastic moduli and i…
Metal and Thin Film MechanicsBoron and Carbon Nanomaterials ResearchMXene and MAX Phase Materials
V. O. Sokolov、В. Г. Плотниченко、В. В. Колташев 等 4 位作者2009-04-15Journal of Physics D Applied Physics
Interstitial negative-charged bismuth dimers, and , are suggested as a model of broadband near-IR luminescence centres in bismuth-doped glasses. The model is based on quantum-chemical calculations of equilibrium configurations, absorption, luminescence and luminescence excitation spectra of the dimers in an alumosilic…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsOptical and Acousto-Optic Technologies
Xiao‐Feng Guo、Yong‐Suk Kim、Geon-Joong Kim2009-04-15The Journal of Physical Chemistry C
A simple and useful route to synthesize mesoporous SiO 2, Al 2 O 3, and TiO 2 microcapsules with a hollow macrocore structure was studied. The deposition of hydrophilic precursor sol containing surfactants in the hydrophobic solvents onto the monodispersed polymer surfaces has been applied to produce the mesoporous sh…
Catalytic Processes in Materials ScienceMesoporous Materials and CatalysisBlock Copolymer Self-Assembly
Jiangying Peng、Jian He、Zhe Su 等 6 位作者2009-04-15Journal of Applied Physics
Void filling in the CoSb3 skutterudite lattice with different kinds of heavy elements has proved effective in enhancing their thermoelectric performance. In this paper we report the effects of (In,Yb) double filling on the high temperature thermoelectric properties of CoSb3. The InxYbyCo4Sb12 (0≤(x,y)≤0.2) samples hav…
Advanced Thermoelectric Materials and DevicesRare-earth and actinide compoundsThermal properties of materials
Tasneem Zahra Rizvi、Abdul Shakoor2009-04-15Journal of Physics D Applied Physics
Frequency dependent ac conductivity (σac), dielectric constant (e') and loss factor (e'') have been measured in the frequency range 100–106 Hz in polypyrrole/Na+–montmorillonite (PPy/Na+–MMT) clay nanocomposites. The nanocomposites were synthesized by in situ polymerization of pyrrole with varying amounts of Na+–MMT f…
Advanced Battery Materials and TechnologiesConducting polymers and applicationsDielectric materials and actuators
Periklis Papadopoulos、Roxana Ene、Immanuel Weidner 等 4 位作者2009-04-15Macromolecular Rapid Communications
Minor and major ampullate spider silks are studied under varying mechanical stress by static and time-resolved FT-IR spectroscopy. This enables one to trace the external mechanical excitation on a microscopic level and to determine for the different moieties the time dependence of the molecular order parameters and co…
Silk-based biomaterials and applicationsPhytochemical compounds biological activities
Paul S. Robinson、Robert T. Tranquillo2009-04-15Tissue Engineering Part A
To design more effective tissue-engineered heart valve replacements, the replacement tissue may need to mimic the biaxial stress-strain behavior of native heart valve tissue. This study characterized the planar biaxial properties of tissue-engineered valve leaflets and native aortic valve leaflets. Fibrin-based valve…
Cardiac Valve Diseases and TreatmentsElectrospun Nanofibers in Biomedical ApplicationsElasticity and Material Modeling
Yusuke Arai、Tatsuya Yamashidta、Takenobu Suzuki 等 4 位作者2009-04-15Journal of Applied Physics
Tb 3 + – Yb 3 + codoped fluorophosphate glasses were synthesized and properties of the visible emission at 0.54 μm were investigated. The upconversion excitation efficiency from Yb3+ to Tb3+ was studied by evaluation of the cooperative energy transfer efficiency from Yb3+ to Tb3+ (ηCET) and the back-transfer efficienc…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsSolid State Laser Technologies
Jaroslav Křı́ž、Larisa Starovoytová、Miroslava Trchová 等 5 位作者2009-04-15The Journal of Physical Chemistry B
The products obtained within early stages of the oxidative polymerization of aniline in solutions of various weak organic acids or in water, and aniline oligomers produced by the oxidation of aniline and aniline-(15)N in acetic acid (0.4 M) with a limited amount of oxidant were analyzed using 1H, 13C, and 15N 1D and 2…
Organic Electronics and PhotovoltaicsConducting polymers and applicationsAnalytical Chemistry and Sensors
Hyung Kyun Yu、Zhengwei Mao、Dayang Wang2009-04-15Journal of the American Chemical Society
Incubation of polyelectrolyte multilayer coated polystyrene particles in a mixture of water and tetrahydrofuran leads to rapid protrusion of the polystyrene through the polyelectrolyte coating and thus to formation of anisotropic particles, which is independent of the polystyrene core size and the polyelectrolyte coat…
Surfactants and Colloidal SystemsPolymer Surface Interaction StudiesPickering emulsions and particle stabilization
Marcel Schumm、Martin Koerdel、Sven Müller 等 8 位作者2009-04-15Journal of Applied Physics
With micro-Raman spectroscopy and x-ray diffraction (XRD), we studied ZnO crystals implanted with Mn, Fe, Co, and Ni, respectively, with implantation concentrations from 4 up to 16 at. %. Using thermal treatments in air up to 700 °C, we analyzed the annealing effect on the ZnO crystal lattice as well as the onset of s…
ZnO doping and propertiesCopper-based nanomaterials and applicationsElectronic and Structural Properties of Oxides
Dekun Ma、Shaoming Huang、Yanyan Yu 等 5 位作者2009-04-15The Journal of Physical Chemistry C
Rare-earth-ion-doped hexagonal-phase NaYF 4 nanowires were hydrothermally synthesized at the cooperative effect of sodium citrate with AOT on a large scale. As-synthesized nanowires have a uniform size with several micrometers in length and ca. 100 nm in diameter. The XRD pattern of the products is notably different f…
Luminescence Properties of Advanced MaterialsPerovskite Materials and ApplicationsInorganic Fluorides and Related Compounds
Shanghua Li、Jian Qin、Andrea Fornara 等 6 位作者2009-04-15Nanotechnology
PMMA/Fe-oxide nanocomposites are fabricated by a chemical method. Monodispersed Fe-oxide nanoparticles are well dispersed in the PMMA matrix by in situ polymerization, resulting in a bulk transparent polymeric nanocomposite. The magnetic behavior of the PMMA/Fe-oxide nanocomposites is investigated. The transparent PMM…
Liquid Crystal Research AdvancementsPolymer Nanocomposites and PropertiesMultiferroics and related materials
Md. Abounaim、G. W. Hoffmann、Olaf Diestel 等 4 位作者2009-04-15Textile Research Journal
Flat knitted spacer fabrics offer a strong potential for complex shape preforms, which could be used to manufacture composites with reduced waste and shorter production times. A reinforced spacer fabric made of individual surface layers and joined with connecting layers shows improved mechanical properties for lightwe…
Mechanical Behavior of CompositesAdditive Manufacturing and 3D Printing TechnologiesTextile materials and evaluations
Aria Yang、C. N. Chinnasamy、Jean−Marc Grenèche 等 11 位作者2009-04-15Nanotechnology
Mn ferrite (MnFe(2)O(4)) nanoparticles, having diameters from 4 to 50 nm, were synthesized using a modified co-precipitation technique in which mixed metal chloride solutions were added to different concentrations of boiling NaOH solutions to control particle growth rate. Thermomagnetization measurements indicated an…
Magnetic Properties and Synthesis of FerritesElectromagnetic wave absorption materialsIron oxide chemistry and applications
Peng Zhang、Xiaobin Huang、Jianwei Fu 等 6 位作者2009-04-15Macromolecular Chemistry and Physics
Abstract Highly cross‐linked microspheres bearing active amino groups on the surface have been successfully synthesized via a single‐step precipitation polymerization of hexachlorocyclotriphosphazene (HCCP) with 4,4′‐diaminodiphenyl ether (ODA) in acetonitrile medium without any added surfactant. The active microspher…
Conducting polymers and applicationsFlame retardant materials and propertiesSynthesis and properties of polymers
Yunxin Liu、Changfu Xu、Qibin Yang2009-04-15Journal of Applied Physics
Rare earth (RE) doped ZnO nanocrystals were synthesized by chemical combustion method. Bright white upconversion (UC) luminescence with the CIE coordinates close to (0.33, 0.33) was obtained in Er+Tm+Yb tridoped ZnO nanocrystals under the excitation of a cost-effective 980 nm single-wavelength laser diode. The overall…
ZnO doping and propertiesLuminescence Properties of Advanced MaterialsLuminescence and Fluorescent Materials