Wei‐Tsung Chuang、Hwo‐Shuenn Sheu、U‐Ser Jeng 等 6 位作者2009-02-25Chemistry of Materials
When a symmetrical diblock copolymer of poly(styrene)-block-poly(4-vinylpyridine) (PS-b-P4VP) is densely hydrogen-bonded with wedge-like nonmesogens of 4′-(3,4,5-trioctyloxybenzoyloxy)benzoic acid (TOB), the supramolecular complex thus formed can self-assemble into a hierarchical structure of tetragonal perforation la…
Advanced Polymer Synthesis and CharacterizationSurfactants and Colloidal SystemsBlock Copolymer Self-Assembly
Ming‐Chang Liu、Hwo‐Shuenn Sheu、Soofin Cheng2009-02-25Journal of the American Chemical Society
Mesostructured silica synthesized using cetyltriethylammonium (CTEA) ion as the pore-directing agent in acidic environments was ready to have interfacial anions exchanged at ambient temperature. In situ techniques including small-angle X-ray scattering (SAXS) and optical microscopy were used to examine the structural…
Mesoporous Materials and CatalysisClay minerals and soil interactionsChemical Synthesis and Characterization
Yi Wang、Yuan Fang Li、Cheng Zhi Huang2009-02-25The Journal of Physical Chemistry C
With our newly prepared novel chitosan−ninhydrin (CHIT-NH) bioconjugate in this contribution, we made one-dimensional (1-D) assemblies of gold nanoparticles (NPs) at physiological temperature. This 1-D assembly method is simple, one-pot, and totally green wherein multiplex functional groups of the CHIT-NH conjugate ma…
Nanoparticles: synthesis and applicationsGold and Silver Nanoparticles Synthesis and ApplicationsAdvanced Nanomaterials in Catalysis
Sunita Srivastava、A. K. Kandar、J. K. Basu 等 7 位作者2009-02-25Physical Review E
Polymer nanocomposites offer the potential to create a new type of hybrid material with unique thermal, optical, or electrical properties. Understanding their structure, phase behavior, and dynamics is crucial for realizing such potentials. In this work we provide an experimental insight into the dynamics of such comp…
Phase Equilibria and ThermodynamicsMaterial Dynamics and PropertiesPolymer Nanocomposites and Properties
Marcin Ziółek、Gotard Burdziński、Jerzy Karolczak2009-02-25The Journal of Physical Chemistry A
A photochromic symmetric Schiff base, N,N'-bis(salicylidene)-p-phenylenediamine, has been studied by means of stationary and time-resolved spectroscopic absorption and emission techniques in the UV-vis spectral range with particular attention to the role of intermolecular hydrogen bonds. They are found to be responsib…
Photochemistry and Electron Transfer StudiesPhotochromic and Fluorescence ChemistryFree Radicals and Antioxidants
Makoto Moriya、Masashi Ito、Wataru Sakamoto 等 4 位作者2009-02-25Crystal Growth & Design
One-pot syntheses of size- and shape-controlled spinel ferrite, MFe 2 O 4 (M = Fe, Co, and Mn), nanocrystals (NCs) larger than 20 nm in size are achieved by the thermolysis of mixed-valence triiron complexes and heterotrimetallic complexes as a precursor using benzilic acid (BA) as a capping ligand. The molar ratio of…
Advancements in Battery MaterialsMagnetic Properties and Synthesis of FerritesIron oxide chemistry and applications
Miriam Moreno‐Moreno、Andrés Castellanos-Gómez、Gabino Rubio‐Bollinger 等 5 位作者2009-02-25Small
An atomic force microscopy topograph with a long and narrow (≈24 µm × 37 nm) graphene nanoribbon emerging from a graphite flake laying on a silicon oxide substrate is shown in the image. The sample is prepared by microcleavage using silicone stamps instead of cellophane tape. These nanoribbons present well-defined edg…
Carbon Nanotubes in CompositesGraphene research and applicationsMolecular Junctions and Nanostructures
Ludwig K. Limbach、Robert N. Grass、Wendelin J. Stark2009-02-25CHIMIA International Journal for Chemistry
The rapidly growing applications of nanotechnology require a detailed understanding of benefits and risks, particularly in toxicology. The present study reviews the physical and chemical differences between particles and molecules when interacting with living organisms. In contrast to classical chemicals, the mobility…
Nanoparticles: synthesis and applications
Rikiya Yoshida、Takanori Wakita、Hiroyuki Okazaki 等 16 位作者2009-02-25Journal of the Physical Society of Japan
We have performed soft x-ray and ultrahigh-resolution laser-excited photoemission measurements on tetragonal FeSe, which was recently identified as a superconductor. Energy dependent study of valence band is compared to band structure calculations and yields a reasonable assignment of partial densities of states. Howe…
Rare-earth and actinide compoundsCorporate Taxation and AvoidanceIron-based superconductors research
Jia Li、Jirong Sun、Jun Shen 等 10 位作者2009-02-25Journal of Applied Physics
The magnetocaloric effects (MCEs) of LaFe13−xSix compounds doped by magnetic rare earths (R=Ce, Pr, and Nd) and transition metal (Co) are analyzed. It is found that varying the contents of R and Fe produces similar effects on the MCE, both of which cause a rapid decrease in ΔS with the increase in TC. The ΔS−TC relati…
Magnetic and transport properties of perovskites and related materialsRare-earth and actinide compoundsMagnetic Properties of Alloys
Chenliang Li、Biao Wang、Yuanshi Li 等 4 位作者2009-02-25Journal of Physics D Applied Physics
We calculated the mechanical properties, electronic structure, theoretical hardness and optical properties of V 4 AlC 3 using the first-principles method. The results show that V 4 AlC 3 shows a better performance of the resistance to shape change and against uniaxial tensions and has a slight anisotropy on elasticity…
Boron and Carbon Nanomaterials ResearchMXene and MAX Phase MaterialsInorganic Chemistry and Materials
P. Thiruvasagam、D. Venkatesan2009-02-25Journal of Macromolecular Science Part A
Four novel imides group containing AB monomers, N-(4-hydroxyphenyl)-4-nitrophthalimide, N-(3-hydroxyphenyl)-4-nitrophthalimide, N-(5-hydroxy napthyl)-4-nitrophthalimide, and N-4-[2-(4-hydroxyphenyl) isopropyl phenyl]-4-nitrophthalimide (IIIa-d) were synthesized and characterized by IR, and NMR.The polyetherimides were…
Epoxy Resin Curing ProcessesSynthesis and properties of polymersSynthesis of Tetrazole Derivatives
Jirawan Siramanont、Varawut Tangpasuthadol、Amarawan Intasiri 等 5 位作者2009-02-25Polymer Engineering and Science
Abstract Sol‐gel process of alkyltriethoxysilanes that was dispersed in natural rubber latex was used to generate alkylated silica particles inside the rubber matrix. Three types of alkyltriethoxysilanes were chosen, i.e., vinyltriethoxysilane (VTOS), ethyltriethoxysilane (ETOS), and i ‐butyltriethoxysilane (BTOS), as…
Surface Modification and SuperhydrophobicityPolymer Nanocomposites and PropertiesSilicone and Siloxane Chemistry
Jianli Wang、S. J. Campbell、Andrew J. Studer 等 6 位作者2009-02-25Journal of Physics Condensed Matter
The effects of replacing Pr by Lu on the magnetic behaviour and structures of Pr(1-x)Lu(x)Mn(2)Ge(2) (x = 0.2,x = 0.4) have been investigated using x-ray diffraction, Mössbauer spectroscopy, magnetization and neutron diffraction measurements. The substitution of Lu for Pr leads to a decrease in the lattice constants a…
Magnetic and transport properties of perovskites and related materialsRare-earth and actinide compoundsMagnetic Properties of Alloys
Hiromu Watanabe、Motoharu Imai、Naoto Kijima2009-02-25Journal of the American Ceramic Society
The nitridation process of Eu‐doped AE AlSi ( AE =Ca and/or Sr) was investigated by thermogravimetry–differential thermal analysis to improve the method for synthesis of AE AlSiN 3 :Eu 2+ nitride phosphors. The nitridation reactivity was dependent on alkaline earth elements. For Sr x Eu y Ca 1− x − y AlSi with a high…
Luminescence Properties of Advanced MaterialsAdvanced ceramic materials synthesisAmmonia Synthesis and Nitrogen Reduction
Yingrui Sui、Bin Yao、Z Hua 等 12 位作者2009-02-25Journal of Physics D Applied Physics
A p-type B–N codoped ZnO film was grown on quartz by magnetron sputtering and post-annealing techniques. It has room-temperature resistivity of 2.3 Ω cm, Hall mobility of 11 cm 2 V −1 s −1 and carrier concentration of 1.2 × 10 17 cm −3 , better than the electrical properties of the N-doped p-type ZnO. The ZnO homojunc…
ZnO doping and propertiesGas Sensing Nanomaterials and SensorsGa2O3 and related materials
Behbood Mohebby、Hamed Younesi、Alireza Ghotbifar 等 4 位作者2009-02-25Journal of Reinforced Plastics and Composites
The purpose of the current research was to investigate water/moisture absorption and associated thickness swelling and their rates in hybrid wood flour/E-glass fiber/propylene composite immersed in water, exposed to steam, and the influence of application of the glass fiber as well as maleic-anhydride-polypropylene (M…
Mechanical Behavior of CompositesNatural Fiber Reinforced CompositesAdditive Manufacturing and 3D Printing Technologies
Paul M. Jones、Steve Dunn2009-02-25Journal of Physics D Applied Physics
Perovskite ferroelectric materials such as PZT have long been known to have wideband semiconducting properties. It has also been found that they have interesting spatially controllable surface photochemical effects that are not seen in 'normal' semiconductors. This has led to their being studied as possible tools in a…
Ferroelectric and Piezoelectric MaterialsChalcogenide Semiconductor Thin FilmsElectronic and Structural Properties of Oxides
Krzysztof Ambroziak、Rene Mbeleck、Yue He 等 5 位作者2009-02-25Industrial & Engineering Chemistry Research
Polymer-supported Mo(VI) catalysts (PBI.Mo and Ps.AMP.Mo) have been prepared and characterized. The activities of both of these catalysts in epoxidation of alkenes (e.g., cyclohexene; 1-octene; limonene; α-pinene) with dry tert- butyl hydroperoxide (TBHP) as oxidant have been studied under different reaction condition…
Porphyrin and Phthalocyanine ChemistryPolyoxometalates: Synthesis and ApplicationsCatalysis and Oxidation Reactions
Priyabrata Banerjee、Anna Company、Thomas Weyhermüller 等 5 位作者2009-02-25Inorganic Chemistry
A series of iron and zinc complexes has been synthesized, coordinated by the macrocyclic biquinazoline ligand, 2-4:6-8-bis(3,3,4,4-tetramethyldihydropyrrolo)-10-15-(2,2'-biquinazolino)-[15]-1,3,5,8,10,14-hexaene-1,3,7,9,11,14-N(6) (Mabiq). The Mabiq ligand consists of a bipyrimidine moiety and two dihydropyrrole units…
Metal complexes synthesis and propertiesMagnetism in coordination complexesQuinazolinone synthesis and applications