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Dimesogenic compounds consisting of cholesterol and fluorinated azobenzene moieties: dependence of liquid crystal properties on spacer length and fluorination of the terminal tail

Woo Keun Lee、Kyunam Kim、Marie France Achard 等 4 位作者2006-01-01Journal of Materials Chemistry

The liquid crystalline (LC) properties of two series of non-symmetric dimesogenic compounds consisting of cholesterol and ring-fluorinated azobenzene mesogenic moieties interconnected by ω-oxyalkanoyl spacers of varying length are compared; one series (F-AOC-n) has the octyloxy tail attached to the fluorinated azobenz…

Liquid Crystal Research AdvancementsSurfactants and Colloidal SystemsAdvanced Materials and Mechanics

Preparation of narrow or mono-disperse crosslinked poly((meth)acrylic acid)/iron oxide magnetic microspheres

Junsheng Huang、Shourong Wan、Miao Guo 等 4 位作者2006-01-01Journal of Materials Chemistry

Low-crosslinked poly((meth)acrylic acid-co-divinylbenzene-80) microspheres with diameters of 0.2–0.9 µm were prepared by precipitation copolymerization and distillation–precipitation copolymerization in neat acetonitrile or an acetonitrile–toluene mixture. All the microspheres prepared possessed excellent spherical sh…

Nanoparticle-Based Drug DeliveryIron oxide chemistry and applicationsCharacterization and Applications of Magnetic Nanoparticles

Preparation of conductive paper by in-situ polymerization of pyrrole in a pulp fibre system

Bin Huang、Guiying Kang、Yonghao Ni2006-01-01Pulp & paper Canada

Des fibres de cellulose dotees de conductivite electrique ont ete fabriquees en deposant du polypyrrole sur la surface des fibres. Non seulement une fonctionnalite nouvelle a-t-elle ete impartie aux fibres de pâte, mais l'aptitude au traitement du polymere conducteur intrinseque s'est beaucoup amelioree. Nous avons ca…

Conducting polymers and applications

Problems and prospect of Al-Mg alloys application in marine constructions

Romhanji Endre、Miljana Popović2006-01-01TechnoRep (University of Belgrade – Faculty of Technology and Metallurgy)

The position of steel as the most widely used material in the shipbuilding industry originates from the superior mechanical properties and low manufacturing costs The increasing demands for lowering the weight of different ships due to the increase of their sizes or generally increasing the payload, the application of…

Aluminum Alloy Microstructure PropertiesMaterial Selection and PropertiesMaterial Properties and Applications

Quasi-one-dimensional molecular magnets based on derivatives of (fluorobenzyl)pyridinium with the [M(mnt)2] monoanion (M = Ni, Pd or Pt; mnt2? = maleonitriledithiolate): Syntheses, crystal structures and magnetic properties

Xiao‐Ming Ren、Sadafumi Nishihara、Tomoyuki Akutagawa 等 11 位作者2006-01-01Dalton Transactions

The syntheses, structural characterizations and magnetic behaviors of three new complexes, 1-(3',4',5'-trifluorobenzyl)pyridinium [M(mnt)2]- [M = Ni (1), Pd (2) or Pt (3)], are reported. These complexes are isomorphous and their prominent structural character is that the [M(mnt)2]- anions form columnar stacks, in whic…

Perovskite Materials and ApplicationsMagnetism in coordination complexesOrganic and Molecular Conductors Research

Physical, Electrical, and Reliability Characterization of Ru for Cu Interconnects

C.-C. Yang、T. Spooner、S. Ponoth 等 14 位作者2006-01-01OpenAlex

Thin film characterization, electrical performance, and preliminary reliability of physical vapor-deposited (PVD) TaN/chemical vapor-deposited (CVD) Ru bilayer were carried out to evaluate its feasibility as a liner layer for back-end of line (BEOL) Cu-low k integration. Adhesion and barrier strength were studied usin…

Electronic Packaging and Soldering TechnologiesSemiconductor materials and devicesCopper Interconnects and Reliability

Evaluation and Comparison of Physicomechanical Characteristics of Gelatin and Hypromellose Capsules

Shahrzad Missaghi、Reza Fassihi2006-01-01Drug Development and Industrial Pharmacy

The aim of this study is evaluation and comparison of physical and mechanical properties of hypromellose and gelatin capsules. For this purpose, the empty and filled capsules of hypromellose and gelatin (size 4) were examined in regard with their physical and mechanical characteristics, employing textural analysis, an…

Electrospun Nanofibers in Biomedical ApplicationsAdditive Manufacturing and 3D Printing TechnologiesCollagen: Extraction and Characterization

Corrosion Resistance of Cerium-Conversion Coated AZ31 Magnesium Alloys in Cerium Nitrate Solutions

Chao-Sung Lin、Wei‐Jen Li2006-01-01MATERIALS TRANSACTIONS

Cerium conversion coatings are a potential alternative to chromium conversion coatings for improving the corrosion resistance of magnesium alloys. This study detailed the microstructure and corrosion resistance of cerium conversion coatings on AZ31 magnesium plates treated in 0.05 kmol m−3 cerium nitrate solution, wit…

Corrosion Behavior and InhibitionMagnesium Alloys: Properties and ApplicationsAluminum Alloys Composites Properties

A columnar liquid crystal based on triphenylphosphine oxide—its structural changes upon interaction with alkaline metal cations

Tsukasa Hatano、Takashi Kato2006-01-01Chemical Communications

A triphenylphosphine oxide (TPPO) compound bearing 3,4,5-tridodecyloxybenzyloxy moieties exhibits a columnar liquid crystalline phase, and by changing its self-assembled structure, is responsive to alkaline metal cations due to cation-phosphine oxide interactions.

Liquid Crystal Research AdvancementsSupramolecular Chemistry and ComplexesSupramolecular Self-Assembly in Materials

Fabrication and Properties of ZnO Thin Films Prepared by Fine Channel Mist Mehtod

Toshiyuki Kawaharamura、Hiroyuki Nishinaka、Keisuke Kametani 等 6 位作者2006-01-01Journal of the Society of Materials Science Japan

The fine channel mist (FCM) method has been developed, as a safe and economical growth technology of zinc oxide (ZnO) thin films. This technique utilized aqueous solution of zinc acetate, which is a safe material, as a zinc source, and this solution is supplied to the growth as a form of micro-sized mist by applying u…

ZnO doping and propertiesGas Sensing Nanomaterials and SensorsCopper-based nanomaterials and applications

Dependence of dissociation pressure upon doping level of Ti-doped sodium alanate—a possibility for “thermodynamic tailoring” of the system

Guido Streukens、Borislav Bogdanović、Michael Felderhoff 等 4 位作者2006-01-01Physical Chemistry Chemical Physics

Pressure-concentration isotherms have been recorded for NaAlH(4) with different doping levels of titanium. It is well known that titanium accelerates the hydrogenation and dehydrogenation reactions in this system. Our studies have shown that the titanium doping also significantly alters the thermodynamics of the syste…

Hydrogen Storage and MaterialsQuantum, superfluid, helium dynamicsAmmonia Synthesis and Nitrogen Reduction

Preparation, Characterization and Dielectric Properties of Epoxy and Polyethylene Nanocomposites

Chao Zhang、Ralf Mason、G.C. Stevens2006-01-01IEEJ Transactions on Fundamentals and Materials

Two very different kinds of polymer nanocomposites have been prepared, characterized and investigated by dielectric spectroscopy to investigate the effects of polymer-nanofiller matrix difference on the dielectric response of nanodielectric composites. Linear low density polyethylene (LLDPE) is a non-polar thermoplast…

Polymer Nanocomposites and PropertiesHigh voltage insulation and dielectric phenomenaDielectric materials and actuators

On the site-specificity of polycarbonyl complexes in Cu/zeolites: combined experimental and DFT study

Roman Bulánek、Helena Drobná、Petr Nachtigall 等 5 位作者2006-01-01Physical Chemistry Chemical Physics

The preferred Cu(+) sites and formation of mono-, di-, and tricarbonyl complexes in the Cu-FER were investigated at the periodic density functional theory level and by means of FTIR spectroscopy. The site-specificity of adsorption enthalpies of CO on Cu-FER and of vibrational frequencies of polycarbonyl complexes were…

Catalytic Processes in Materials ScienceZeolite Catalysis and SynthesisIonic liquids properties and applications

Conversion of Perhydropolysilazane-to-Silica Thin Films by Exposure to Vapor from Aqueous Ammonia at Room Temperature

Tomoko Kubo、Hiromitsu Kozuka2006-01-01Journal of the Ceramic Society of Japan

Perhydropolysilazane (PHPS) films ca. 0.2 μm in thickness were deposited by spin-coating on Si(100) and silica glass substrates. The PHPS films obtained were suspended over aqueous ammonia of various concentrations for various periods of time at room temperature. The Si-H and N-H infrared absorption peaks decreased, w…

Surface Modification and SuperhydrophobicityGlass properties and applicationsSilicone and Siloxane Chemistry

Synthesis and self-assembly of dichalcone substituted carbazole-based low-molecular mass organogel

Lihong Su、Chunyan Bao、Ran Lu 等 9 位作者2006-01-01Organic & Biomolecular Chemistry

We report the synthesis and self-assembly of a new pi-conjugated dichalcone substituted carbazole-based low molecular mass organogelator. It could form stable gels in most halogen-aromatic solvents. The transmission electron microscopy (TEM) images revealed that the gel formed fibrous structures with diameter of 50-10…

Supramolecular Self-Assembly in MaterialsPhotochromic and Fluorescence ChemistryPolydiacetylene-based materials and applications

Synthesis and Characterization of Electroactive Films Deposited from Aniline Dimers

M.A. Cotarelo、Francisco Huerta、C. Quijada 等 5 位作者2006-01-01Journal of The Electrochemical Society

The electrochemical oxidation of the aniline dimers 2-aminodiphenylamine (2-adpa) and 4-aminodiphenylamine (4-adpa) has been performed in strongly acidic medium on platinum, graphite, and indium tin oxide electrodes. The resulting films have been characterized by a number of electrochemical, microscopic, and spectrosc…

Electrochemical sensors and biosensorsConducting polymers and applicationsAnalytical Chemistry and Sensors

Access to functionalized quinones via the aromatic oxidation of phenols bearing an alcohol or olefinic function catalyzed by supported iron phthalocyanine

Olga V. Zalomaeva、Alexander B. Sorokin2006-01-01New Journal of Chemistry

The controlled oxidation at only one position of compounds with several oxidizable sites, while keeping the other sites intact, has been demonstrated for phenols bearing alcohol or olefinic functional groups. Iron tetrasulfophthalocyanine supported on silica was found to be an efficient catalyst for the preparation of…

Porphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation MechanismsOxidative Organic Chemistry Reactions

Radiative Properties of the Blue BaAl[sub 2]S[sub 4]:Eu[sup 2+] Phosphor

Carlos Barthou、R. B. Jabbarov、P. Bénalloul 等 7 位作者2006-01-01Journal of The Electrochemical Society

The optical properties of BaAl 2 S 4 doped with Eu 2 + were investigated. The synthesis was performed in evacuated and sealed quartz ampul at 1000°C during 1 h, then at 840°C during 20 h. With absorption, excitation, and emission spectra we have determined the crystal-field splitting, the redshift, the influence of th…

Luminescence Properties of Advanced MaterialsRadiation Detection and Scintillator TechnologiesSolid-state spectroscopy and crystallography

Precipitation Processes in a Cu–0.9 mass% Be Single Crystal

Ryoichi Monzen、Tsutomu Seo、Toshiro Sakai 等 4 位作者2006-01-01MATERIALS TRANSACTIONS

The precipitation processes in a Cu–0.9 mass%Be alloy single crystal containing only G.P. zones parallel to the matrix (001)α plane have been studied by high-resolution transmission electron microscopy. The precipitation sequence found is: G.P. zones→γ″→γ′I→γI+γ′→γ. The γ″ phase has a two-layer structure of Be atoms s…

Microstructure and mechanical propertiesMicrostructure and Mechanical Properties of SteelsAluminum Alloy Microstructure Properties