Steven Swier、Bruno Van Mele2003-02-05Journal of Polymer Science Part B Polymer Physics
Abstract The reaction enthalpy and reaction heat capacity of three aromatic epoxy–amine systems have been determined with modulated temperature diffential scanning calorimetry (MTDSC), mostly in quasi‐isothermal conditions, over a wide temperature range (33–140 °C) and for different mixture compositions. The reaction…
Thermal and Kinetic AnalysisChemical Thermodynamics and Molecular StructureChemistry and Chemical Engineering
Jushik Yun、А. I. Isayev、Seok H. Kim 等 4 位作者2003-02-05Journal of Applied Polymer Science
Abstract The comparative study of the continuous ultrasonic devulcanization of various unfilled rubbers [natural rubber, styrene–butadiene rubber (SBR), ethylene–propylene–diene rubber (EPDM)] is carried out by means of a ultrasonic reactor. The power consumption, gel fraction, crosslink density, cure behavior, and ph…
Polymer Nanocomposites and PropertiesEpoxy Resin Curing ProcessesSilicone and Siloxane Chemistry
Rajesh Paradkar、Subodh S. Sakhalkar、Xiaojun He 等 4 位作者2003-02-05Journal of Applied Polymer Science
Abstract Online Raman spectra, obtained at different points along the spin line during pilot‐scale nonisothermal melt spinning of high density polyethylene (HDPE) fibers, are presented for the first time. The fraction of the crystalline phase corresponding to each spectrum was determined from the normalized integrated…
Polymer crystallization and propertiesNatural Fiber Reinforced CompositesMicroplastics and Plastic Pollution
Stéphane Roux、Galo J. de A. A. Soler‐Illia、Sophie Demoustier‐Champagne 等 5 位作者2003-02-05Advanced Materials
A bifunctional capping ligand is used to obtain pyrrol‐functionalized monodispersed nanocrystalline TiO 2 (anatase) particles in a single step. The pyrrole functionalities in the shell are then (electro)chemically polymerized to create a polypyrrole (PPy)/TiO 2 hybrid nanocomposite film (see Figure). Further electroni…
Electrochemical sensors and biosensorsConducting polymers and applicationsPolyoxometalates: Synthesis and Applications
John M. Lupton、P. Schouwink、Panagiotis E. Keivanidis 等 5 位作者2003-02-05Advanced Functional Materials
Abstract Dendronization has previously been suggested as a means of controlling the level of intermolecular interactions in macromolecular and polymeric compounds. We therefore studied the spectral relaxation dynamics of dendronized and non‐dendronized polyfluorenes at different temperatures. Dendronization strongly a…
Luminescence and Fluorescent MaterialsDendrimers and Hyperbranched PolymersSynthesis and properties of polymers
Limin Huang、Shalom J. Wind、Stephen O’Brien2003-02-05Nano Letters
We have grown carbon nanotubes (CNTs) with controlled orientation and diameter (1−4 nm) from thermally stable, highly ordered mesoporous SiO 2 thin films by methane chemical vapor deposition (CVD). Controlled incorporation of an Fe precursor into one-dimensional (1D) and three-dimensional (3D) pore channels of mesopor…
Carbon Nanotubes in CompositesGraphene research and applicationsSupercapacitor Materials and Fabrication
G. M. Graham、Robert Stalker、Richard William McIntosh2003-02-05International Symposium on Oilfield Chemistry
Abstract The laboratory determination of scale inhibitor (SI) performance under field specific conditions using dynamic or static scale inhibitor tests provides an important method for determining minimum inhibitor concentrations (MIC's) for the inhibition of scale growth. This paper will discuss the ability of small…
Drilling and Well EngineeringCalcium Carbonate Crystallization and InhibitionMinerals Flotation and Separation Techniques
H. M. Zidan2003-02-05Journal of Applied Polymer Science
Abstract Poly(vinylalcohol) (PVA) films filled with different filling levels of CrF 3 and MnCl 2 have been prepared by the casting method. Differential scanning calorimetry (DSC) and X‐ray diffraction (XRD) analysis were used to study the changes in structure properties that occur due to filling. The changes occurring…
Polymer Nanocomposites and PropertiesPolymer Nanocomposite Synthesis and IrradiationPolymer Science and PVC
J.D. Halla、Marc Mamak、David E. Williams 等 4 位作者2003-02-05Advanced Functional Materials
Abstract This paper describes the synthesis and characterization of a novel mesostructured solid electrolyte composite material, denoted meso ‐SiO 2 –C 12 EO 10 OH–CF 3 SO 3 H. A lyotropic non‐ionic surfactant–triflic acid–silicate liquid crystal is used as a supramolecular template for a “one‐pot” synthesis of the ma…
Fuel Cells and Related MaterialsMesoporous Materials and CatalysisPolyoxometalates: Synthesis and Applications
Matthew S. Wagner、T. A. Horbett、David G. Castner2003-02-05Langmuir
In complex adsorbed protein films, the biological reactivity of the adsorbed proteins depends on their relative concentrations, organization, conformation, and orientation. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) samples the outermost composition of an adsorbed protein film, providing biologically re…
Analytical chemistry methods developmentPolymer Surface Interaction StudiesIon-surface interactions and analysis
Trevor J. Dines、Steven Inglis2003-02-05Physical Chemistry Chemical Physics
Raman spectroscopy has been used to characterise Cr(VI) oxide species supported on the surfaces of SiO2, Al2O3, SiO2–Al2O3 and TiO2, as a function of Cr loading and calcination temperature. The interpretation of the spectra has been facilitated by Lorentzian band deconvolution and ab initio calculations employing the…
Catalytic Processes in Materials ScienceCatalysis and Hydrodesulfurization StudiesCatalysis and Oxidation Reactions
Hidetoshi Goto、Hao Qian Zhang、Eiji Yashima2003-02-05Journal of the American Chemical Society
Poly(phenylacetylene) gels (gel-1-H and gel-2-H) bearing a carboxy pendant were synthesized either by the copolymerization of (4-carboxyphenyl)acetylene (gel-1-H) with a bis(phenylacetylene) derivative as the cross-linking reagent using a rhodium complex ([Rh(cod)(2)]BF(4): cod = 1,5-cyclooctadiene) as the catalyst or…
Hydrogels: synthesis, properties, applicationsSynthesis and Properties of Aromatic CompoundsSupramolecular Self-Assembly in Materials
M. Y. Yen、Ching‐Wen Chiu、Chih‐Hao Hsia 等 7 位作者2003-02-05Advanced Materials
Cable‐like copper nanowires (1–10 μm in length and 15–80 nm in diameter) with an insulating poly(dimethylsiloxane) (PDMS) sheath (5–10 nm in thickness, see Figure) have been successfully synthesized by a solvent‐free reaction between CuCl and (Me 3 Si) 4 Si in the presence of PDMS in sealed tubes. The wire formation m…
Copper Interconnects and ReliabilitySynthesis and properties of polymersFluid Dynamics and Thin Films
Robert Laskowski、Peter Blaha、Karlheinz Schwarz2003-02-05Physical review. B, Condensed matter
We have applied the augmented plane-wave plus local-orbitals method to investigate the charge density of ${\mathrm{Cu}}_{2}\mathrm{O}$ by means of Bader's topological analysis and electric-field gradients (EFGs). It is rather clear that a simple ${\mathrm{Cu}}^{+}\ensuremath{-}{\mathrm{O}}^{2\ensuremath{-}}$ model is…
Advanced Chemical Physics StudiesHigh-pressure geophysics and materialsCopper-based nanomaterials and applications
Marion Lescanne、Annie Colin、Olivier Mondain‐Monval 等 5 位作者2003-02-05Langmuir
We present an experimental study of the mechanism of formation and the mechanical properties of an organogel, formed by the gelator compound 2,3-di- n -decyloxyanthracene (DDOA) in propylene carbonate. Using light microscopy, light and X-ray scattering, and rheological measurements, we show that gel formation is due t…
Lipid Membrane Structure and BehaviorSupramolecular Self-Assembly in MaterialsPolydiacetylene-based materials and applications
Matthew J. Misner、Habib Skaff、Todd Emrick 等 4 位作者2003-02-05Advanced Materials
Nanoporous film generation from diblock copolymers has been used to direct the assembly of ligand‐stabilized CdSe nanoparticles (see Figure). The number of particles forced into each pore is dependent on the concentration of the nanoparticles in solution. Further, the photoluminescence of the particles is maintained i…
Quantum Dots Synthesis And PropertiesPolymer Surface Interaction StudiesBlock Copolymer Self-Assembly
Débora Puglia、Luca Valentini、J. M. Kenny2003-02-05Journal of Applied Polymer Science
Abstract The effect of the incorporation of single‐walled carbon nanotubes (SWNTs) onto a diglycidyl ether of bisphenol A‐based (DGEBA) epoxy resin cure reaction was investigated by thermal analysis and Raman spectroscopy. The results of the investigation show that SWNTs act as a strong catalyst. A shift of the exothe…
Carbon Nanotubes in CompositesPolymer Nanocomposites and PropertiesEpoxy Resin Curing Processes
Vijay Kumar、Yoshiyuki Kawazoe2003-02-05Physical Review Letters
Ab initio calculations of H interaction on ${\mathrm{S}\mathrm{i}}_{12}M$, ${\mathrm{S}\mathrm{i}}_{18}{M}_{2}$ ($M=\mathrm{C}\mathrm{r}$, Mo, and W), and $\mathrm{Z}\mathrm{r}@{\mathrm{S}\mathrm{i}}_{16}$ fullerene ($f$) show relatively weak binding of H in agreement with experimental results of H free ${\mathrm{S}\m…
Graphene research and applicationsDiamond and Carbon-based Materials ResearchBoron and Carbon Nanomaterials Research
Wim H. de Jeu、Б. И. Островский、A. N. Shalaginov2003-02-05Reviews of Modern Physics
Smectic membranes are perfect model systems for studying low-dimensional phase transitions and the associated fluctuations. During the last two decades we have seen important progress in the understanding of the structure and fluctuation behavior of these systems, driven by both new experimental techniques and theoret…
Liquid Crystal Research AdvancementsPhotonic Crystals and ApplicationsSurfactants and Colloidal Systems
Hiromichi Ohta、Kenji Nomura、Masahiro Orita 等 8 位作者2003-02-05Advanced Functional Materials
Abstract Single‐crystalline thin films of the homologous series InGaO 3 (ZnO) m (where m is an integer) are fabricated by the reactive solid‐phase epitaxy (R‐SPE) method. Specifically, the role of ZnO as epitaxial initiator layer for the growth mechanism is clarified. High‐temperature annealing of bilayer films consis…
ZnO doping and propertiesThin-Film Transistor TechnologiesGa2O3 and related materials