Masaki Matsuda、T. Naito、Tamotsu Inabe 等 9 位作者2000-01-01Journal of Materials Chemistry
A conducting partially oxidized salt of TPP[Fe(Pc)(CN)2]2, which contains paramagnetic iron(III), has been obtained by electrocrystallization of TPP[Fe(Pc)(CN)2]. The crystal is composed of one-dimensional TPP arrays surrounded by slipped-stacked one-dimensional Fe(Pc)(CN)2 chains. This structure is isomorphous with T…
Magnetism in coordination complexesPorphyrin and Phthalocyanine ChemistryOrganic and Molecular Conductors Research
Andrea J. Peters、Neil R. Branda2000-01-01Advanced Materials for Optics and Electronics
Only one photo-induced cyclization reaction occurs when two 1,2-dithienylethene photochromes are covalently joined. Attempts made to ring-close the second photochrome by prolonged irradiation quantitatively produced a rearranged product that could not be photobleached. Copyright © 2000 John Wiley & Sons, Ltd.
Porphyrin and Phthalocyanine ChemistryPhotochromic and Fluorescence ChemistryPolydiacetylene-based materials and applications
Fatiha Chellat、Maryam Tabrizian、Severian Dumitriu 等 6 位作者2000-01-01Journal of Biomedical Materials Research
Microspheres of a polyelectrolyte complex hydrogel were prepared from chitosan and xanthan after interaction between the two polyionic polymers. Their biodegradation was studied vs. chitosan. Simulated gastric fluid (SGF, pH 1.2) and intestinal fluid (SIF, pH 7.5) both as biodegradation media and phosphate buffered sa…
Hydrogels: synthesis, properties, applicationsNanocomposite Films for Food PackagingAdvanced Drug Delivery Systems
Fengkui Li、Richard C. Larock2000-01-01Journal of Polymer Science Part B Polymer Physics
The tensile stress–strain behavior and fracture properties of some new soybean oil based polymeric materials were investigated at room temperature. These materials were prepared by the cationic copolymerization of regular soybean oil, low saturation soybean oil (LoSatSoy oil), or conjugated LoSatSoy oil with styrene a…
Polymer Nanocomposites and PropertiesSilicone and Siloxane ChemistryMaterial Properties and Processing
Peter R. Eastwood2000-01-01Research Studies Press eBooks
This book reviews the major technical issues of the subject from an applications and systems perspective. It describes where today's aftertreatment are currently under research, and how aftertreatment can most effectively be integrated into a vehicle's powertrain. The text is organised according to eight specific prob…
Catalytic Processes in Materials ScienceVehicle emissions and performance
Dan Dalacu、L. Martinů2000-01-01Journal of Applied Physics
Nanocomposite films consisting of metal nanoparticles embedded in a dielectric matrix were fabricated by simultaneous sputtering of a gold target and plasma-enhanced chemical vapor deposition of hydrogenated SiO2. The optical constants of the films were determined from spectroscopic ellipsometry measurements and were…
Gold and Silver Nanoparticles Synthesis and ApplicationsNonlinear Optical Materials Studiesnanoparticles nucleation surface interactions
Isabelle Texier、Jacques A. Delaire、C. Giannotti2000-01-01Physical Chemistry Chemical Physics
Previous studies have put into evidence the key role of a charge transfer excited state, noted X, in the primary steps of laser photolysis of sodium decatungstate solutions. In this work, we report a thorough study of the reactivity of the X transient towards different organic and inorganic substrates in acetonitrile…
Photochemistry and Electron Transfer StudiesPolyoxometalates: Synthesis and ApplicationsOxidative Organic Chemistry Reactions
Ryosuke Kainuma、Fumihiko Gejima、Yuji Sutou 等 5 位作者2000-01-01Materials Transactions JIM
Order-disorder, martensitic and magnetic transformations in the Ni2AlMn alloys have been investigated by differential scanning calorimetry (DSC), X-ray diffraction (XRD) and transmission electron microscopy (TEM) techniques. The critical temperatures corresponding to the above transformations have been determined. It…
Shape Memory Alloy TransformationsIntermetallics and Advanced Alloy PropertiesHeusler alloys: electronic and magnetic properties
Jeffry W. Stevenson、K. Hasinska、Nathan Canfield 等 4 位作者2000-01-01Journal of The Electrochemical Society
(LSGM) perovskite compositions doped with Co or Fe were prepared by a combustion synthesis technique. Small doping levels of Co or Fe (≤ 10 mol % on the B‐site) resulted in increased electrical conductivity at low temperatures (due to the introduction of electronic charge carriers into the lattice), but at high temper…
Advancements in Solid Oxide Fuel CellsMicrowave Dielectric Ceramics SynthesisThermal Expansion and Ionic Conductivity
Todd Emrick、Han‐Ting Chang、Jean M. J. Fr�chet2000-01-01Journal of Polymer Science Part A Polymer Chemistry
Hyperbranched polymers consisting of aromatic or aliphatic polyether cores and epoxide chain-end peripheries were prepared by proton transfer polymerization. AB2 diepoxyphenol monomer 1 proved to be well suited for the preparation of hyperbranched aromatic polymer 2 by this proton transfer polymerization. The use of c…
Synthetic Organic Chemistry MethodsDendrimers and Hyperbranched PolymersSynthesis and properties of polymers
Masahisa Wada、Yukie Saito2000-01-01Journal of Polymer Science Part B Polymer Physics
Measurements of the thermal expansion coefficients (TECs) of chitin crystals in the lateral direction are reported. We investigated highly crystalline α chitin from the Paralithodes tendon and an anhydrous form of β chitin from a Lamellibrachia tube from room temperature to 250 °C, using X-ray diffraction at selected…
Material Dynamics and PropertiesNanocomposite Films for Food PackagingPolymer Nanocomposites and Properties
Roland Stalder、Peter Ulmer、Alan Bruce Thompson 等 4 位作者2000-01-01American Mineralogist
Experimental investigations in the system albite-water have been carried out to evaluate the accuracy of a new procedure to determine major-element solubilities in fluid phases and water solubilities in melts. The system albite-water had been examined previously and some consensus has been achieved with respect to pha…
Material Dynamics and PropertiesCrystallization and Solubility StudiesChemical and Physical Properties in Aqueous Solutions
Debdatta Ratna、A. K. Banthia2000-01-01Journal of Adhesion Science and Technology
Epoxidized soybean oil (ESO) has been used to toughen epoxy resin cured with ambient temperature hardener, Tris-2,4,6-(N,N-dimethyl amino methyl) phenol. The ESO was prepolymerized with the amine hardener to obtain the liquid epoxidized soybean rubber (ESR). The ESR modified epoxy networks were evaluated for their the…
Synthesis and properties of polymersSilicone and Siloxane ChemistryPhotopolymerization techniques and applications
Seong-Su Kim、Thomas Pauly、Thomas J. Pinnavaia2000-01-01Chemical Communications
Thermally stable mesoporous silica molecular sieves with wormhole framework structures, previously obtainable only from silicon alkoxides, have been prepared from low cost soluble silicate precursors in the presence of non-ionic surfactants as structure directors.
Zeolite Catalysis and SynthesisMesoporous Materials and CatalysisPolyoxometalates: Synthesis and Applications
Durrell K. Rittenberg、Ken‐ichi Sugiura、Y. SAKATA 等 6 位作者2000-01-01Advanced Materials
Anomalously high coercive field magnets with large remanence magnetizations have been prepared from electron-transfer salts of tetracyanoethylene and MnII(porphyrin). These magnets exhibit metamagnetic-like behavior at low temperature but, anomalously, show hysteresis with a large remanent magnetization. Metamagnets t…
Magnetism in coordination complexesPorphyrin and Phthalocyanine ChemistryOrganic and Molecular Conductors Research
Hirokazu Chazono、Hiroshi Kishi2000-01-01Journal of the American Ceramic Society
The sintering characteristics and the reaction of additives with BaTiO 3 (BT) were examined for two materials having Nb‐rich composition (Comp.N) and Co‐rich composition (Comp.C) to elucidate the relation between the stability of the core–shell microstructure and the Nb/Co ratio in the BT–Nb 2 O 5 –Co 3 O 4 system. TE…
Ferroelectric and Piezoelectric MaterialsMicrowave Dielectric Ceramics SynthesisElectronic and Structural Properties of Oxides
Ramakrishna Venugopalan、Chantal M. Trepanier2000-01-01Minimally Invasive Therapy & Allied Technologies
Nitinol is a very attractive material for manufacturing minimally-invasive therapy devices and tools because of its unique superelasticity and shape-memory properties. While several studies have shown it to possess good biocompatibility, its high nickel content and possible dissolution during corrosion still remain a…
Bone Tissue Engineering MaterialsShape Memory Alloy TransformationsTitanium Alloys Microstructure and Properties
Ricardo Baggio、M.T. Garland、Yanko Moreno 等 6 位作者2000-01-01Journal of the Chemical Society Dalton Transactions
Heterometallic compounds comprising copper(II) and rare-earth cations with carboxylate groups of the 2,2′-oxydiacetato as the connecting ligands, have been investigated. Five isostructural polymers [{Cu3Ln2(oda)6(H2O)6}·12H2O]n (Ln = Y (1), Gd (2), Eu (3), Nd (4) and Pr (5)) have been obtained and their structures det…
Metal-Organic Frameworks: Synthesis and ApplicationsMagnetism in coordination complexesLanthanide and Transition Metal Complexes
Nuo Wang、Xue Wu、Chao Li 等 4 位作者2000-01-01Journal of Biomaterials Science Polymer Edition
A series of lactic/glycolic acid polymers with various molar ratios of lactic to glycolic acid and various molecular weights were synthesized using the ring-opening polymerization method. The polymerization conditions for the lactic/glycolic acid polymer synthesis were as follows: 150 degrees C, 700 microm Hg, 3 h, 0.…
Enzyme Catalysis and ImmobilizationAdvanced Polymer Synthesis and Characterizationbiodegradable polymer synthesis and properties
Zhaobin Qiu、Zhishen Mo、Yingning Yu 等 6 位作者2000-01-01Journal of Applied Polymer Science
Nonisothermal melt and cold crystallization kinetics of poly(aryl ether ketone ether ketone ketone) (PEKEKK) were investigated by differential scanning calorimetry (DSC). The Avrami equation modified by Jeziorny could only describe the primary stage of nonisothermal crystallization kinetics of PEKEKK. Also, the Ozawa…
Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties