Materials Literature
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Molecular charge is one of the main determinants of transvascular transport. There are, however, no data available on the effect of molecular charge on microvascular permeability of macromolecules in solid tumours. To this end, we measured tumour microvascular permeability to different proteins having similar size but…
Phenomenological and electrochemical fundamentals of corrosion fundamentals of high temperature corrosion passivity of metals and alloys microbial corrosion environment sensitive fracture corrosive wear and erosion advanced investigation techniques cathodic and anodic protection environmentally friendly inhibitors the…
The electrochemical oxidation of and CO in a system at the interface of a porous Ni‐yttria stabilized zirconia (YSZ) cermet electrode and YSZ electrolyte has been studied using complex‐impedance spectroscopy and direct‐current polarization measurements of 1023 and 1273 K under a constant oxygen partial pressure. The p…
Rubber–clay nanocomposites were prepared by two different methods and characterized with TEM and XRD. The TEM showed clay had been dispersed to one or several layers. The XRD showed that the basal spacing in the clay was increased. It was evident that some macromolecules intercalated to the clay layer galleries. The c…
NIMR) at TU-Delft with interdisciplinary research experience in new and emerging metallic materials: bulk metallic glasses, high entropy alloys, self-healing materials, biomaterials designs, and microstructure physics, Dr. Paul Nnamchi is responsible for the metallurgical and materials academic postgraduate programs i…
Research Article| January 01, 2000 Alunite-Jarosite Crystallography, Thermodynamics, and Geochronology R. E. Stoffregen; R. E. Stoffregen AWK Consulting Engineers, Inc., 1611 Monroeville Avenue, Turtle Creek, Pennsylvania 15145 Search for other works by this author on: GSW Google Scholar C. N. Alpers; C. N. Alpers U.S…
Since its inception in 1966, the series of numbered volumes known as Semiconductors and Semimetals has distinguished itself through the careful selection of well-known authors, editors, and contributors. The Willardson and Beer series, as it is widely known, has succeeded in producing numerous landmark volumes and cha…
Radiation crosslinking of carboxymethylcellulose (CMC) with a degree of substitution (DS) from 0.7 to 2.2 was the subject of the current investigation. CMC was irradiated in solid-state and aqueous solutions at various irradiation doses. The DS and the concentration of the aqueous solution had a remarkable affect on t…
A Methodology for Solving Polymer Problems. Sampling and Sample Preparation. Microscopy of Polymers. Fourier-Transform Infrared Spectroscopic Analysis Methods for Polymers. Thermal Analysis of Polymers. Identification and Analysis of Polymers. Analysis of Blends, Copolymers and Oligomers. Identification and Analysis o…
The polymerization of racemic lactide with a racemic aluminum alkoxide catalyst is reported. Microstructural analysis of the polymer produced with 1H NMR spectroscopy revealed that an isotactic stereoblock poly(lactic acid) formed, where each enantiomerically pure block contained an average of 11 lactide monomer units…
Atomic scale computer simulation based on energy minimization techniques has been used to study excess oxygen accommodation and migration in La2NiO4 + δ. The activation energy for migration in the ac plane is predicted to be 0.29 eV, while the activation energy outside the ac plane, in the b direction is predicted to…
Preface to the Second Edition. Foreword. Acknowledgements. Table of Contents. Abbreviations. 1 Introduction. 2 Solid-State Reactions. 2.1 Reactions Between Solid Compounds. 2.1.1 Ceramic Method. 2.1.2 Carbothermal Reduction. 2.1.3 Combustion Synthesis. 2.1.4 Sintering. 2.2 Solid-Gas Reactions. 2.3 Decomposition and De…
We show how water with its small proton bridge between tetrahedrally coordinated oxygen centers, forms a provocative series with (i) the archetypal glassformer and strong liquid, SiO2, (ii) the analog ionic compound BeF2 in which the Be ions are bridged by fluoride ions, and (iii) elemental Si with no bridge at all. A…
The first quasicrystal (QC) structure was observed in 1984. QCs possess long-range orientational and translational order while lacking the periodicity of crystals. An overview is given on some physical properties of QCs. It begins with group theory and symmetry. Then the thermodynamics of equilibrium properties and ph…
Layered double hydroxides (LDHs) with the hydrotalcite-like structure have been prepared containing different amounts of Ni2+, Cu2+ and Al3+ in the brucite-like layers by a coprecipitation method. The samples have been characterized by elemental chemical analysis, powder X-ray diffraction, differential thermal analysi…
Novel chitosan-based polymeric networks were synthesized and characterized by FTIR, UV and C13 NMR. A naturally occurring crosslinking reagent—genipin, which has been used in herbal medicine and in the fabrication of food dyes, was used to prepare crosslinked chitosan hydrogel. The heterocyclic compound of genipin cro…
Most fire retardant nanocomposites are made from layered silicates and organic polymers, a variety of methods are used in their synthesis. The mechanism for the fire retardancy of these composites is generally considered to be due to the structure of the char formed during combustion, which enables the char to thermal…
Rotating ring‐disk collection experiments and stripping voltammetry have been used to detect Cu ions generated by dissolution of the Al 2 CuMg intermetallic compound in aqueous chloride solutions. Cu ions are generated under open‐circuit conditions (open‐circuit potential − 0.930 V SCE ), or by slight anodic or cathod…
Adsorption of NO and its co-adsorption with oxygen on TiO2 (Degussa P-25) were studied by FTIR spectroscopy. It was found that NO adsorption results in its disproportionation to NO− (1170 cm−1), N2O22− (1335 cm−1) and nitrates (1650–1550 and 1240–1220 cm−1). The nitrate bands develop with time and coordinated NO (ca.…
The story of the outset of the concept of immortal polymerization is presented. Immortal polymerization is the polymerization that gives polymers with a narrow molecular distribution, even in the presence of a chain transfer reaction, because of its reversibility, which leads to the revival of the polymers once dead,…