Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface Characterization of 2-Hydroxyethyl Methacrylate/Styrene Block Copolymers by Transmission Electron Microscopy Observation and Contact Angle MeasurementKazuhisa Senshu, Shuzo Yamashita, Mitsunori Ito, Akira Hirao, and Seiichi NakahamaCite this: Langmuir 1995, 11, 6, 22…
"Standardless" procedures for quantitative electron probe X-ray microanalysis attempt to eliminate the need for standardization through calculation of standard (pure element) intensities. Either "first principles" calculations, which account for all aspects of X-ray generation, propagation, and detection, or "fitted s…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of the First Redox-Active Organometallic Polymers Containing Cyclosiloxanes as FrameworksCarmen M. Casado, Isabel Cuadrado, Moises Moran, Beatriz Alonso, Francisco Lobete, and Jose LosadaCite this: Organometallics 1995, 14, 6, 2618–2620Publication Date (Print):June…
Conformational and thermodynamic properties of polymer chains end-grafted to cylindrical and spherical surfaces under good solvent conditions have been studied using the single-chain mean-field theory. We have considered chains of 50, 100, and 150 segments, and five different radii from R=2 up to R=100. We have found…
Abstract Polymers with dendritic structure are a category of macromolecular architectures that has received considerable attention in the last decade. These polymers, also referred to as dendrimers, exhibit a degree of branching equal to unity. Interest in dendrimers whose branching points are linked to each other by…
Abstract Two procedures to derive all types of sphere packings with three contacts per sphere are described. 52 such types have been found. They are characterized by their shortest meshs and related to Wells' three-connected nets, if possible. It is proved that there exists no sphere packing with contact number three…
The glow discharge treatment of wool in nonpolymerizing gases like air, oxygen, and nitrogen is presented as a new zero-AOX pretreatment for shrinkproofing wool top and fabric. Modification of the wool fibers is restricted to the outer 30-50 nm, and consists of plasma etching and surface oxidation. The former is respo…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNucleation and Anisotropic Growth of Lamellar Microdomains in Block CopolymersTakeji Hashimoto and Naoki SakamotoCite this: Macromolecules 1995, 28, 13, 4779–4781Publication Date (Print):June 1, 1995Publication History Published online1 May 2002Published inissue 1 June 1995h…
Abstract Tetramethylphosphonium-smectite (TMP-clay) and tetramethylammonium-smectite (TMA-clay), were prepared and characterized as adsorbents for a series of aromatic and chlorinated hydrocarbons. The sorption of benzene, alkylbenzenes, and carbon tetrachloride as vapors and as solutes from water was studied to evalu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolarized X-ray Absorption Spectroscopy of Cupric Chloride DihydrateIngrid J. Pickering and Graham N. GeorgeCite this: Inorg. Chem. 1995, 34, 12, 3142–3152Publication Date (Print):June 1, 1995Publication History Published online1 May 2002Published inissue 1 June 1995https://…
The problem of the distribution of the misorientation angle for symmetric randomly oriented objects is solved. It concerns, in particular, the crystallites in polycrystalline materials. The solution is the reference point for materials with nonrandom orientation distribution of crystallites and no correlations between…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDioxoporphyrins as Supramolecular Building Blocks: Oligomer Synthesis via Preassembly on a Ligand TemplateDuncan W. J. McCallien and Jeremy K. M. SandersCite this: J. Am. Chem. Soc. 1995, 117, 24, 6611–6612Publication Date (Print):June 1, 1995Publication History Published on…
Abstract The main surface treatments of materials (metals and plastics in particular) to be joined are presented. It is observed that these treatments modify the roughness, morphology, and chemical composition of the surface. As a result of these operations, the substrate surface energy is generally increased. A corre…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Role of Lithium Salts in the Conductivity and Phase Morphology of a Thermoplastic PolyurethaneJ. D. Van Heumen and J. R. StevensCite this: Macromolecules 1995, 28, 12, 4268–4277Publication Date (Print):June 1, 1995Publication History Published online1 May 2002Published i…
Compacts of TiB 2 with densities approaching 100% are difficult to obtain using pressureless sintering. The addition of SiC was very effective in improving the sinterability of TiB 2 . The oxygen content of the raw TiB 2 powder used in this research was 1.5 wt%. X‐ray photoelectron spectroscopy showed that the powder…
The occurrence of anomalously high ionic-defect concentrations in solids at temperatures approaching the transition to a molten or superionic (i.e., molten cation or anion sublattice) phase is a well-known phenomenon. We show that this premelting phenomenon can be quantitatively described by a cube-root law not only f…
We report computer simulations of a three-dimensional system of semiflexible polymers consisting of hard spherocylinders connected by joints of variable flexibility. In these simulations, we have studied the influence of molecular flexibility on the location of the isotropic-nematic phase transition. A comparison of o…
A complex of polyhydroxybutyrate (PHB), Ca2+, and inorganic polyphosphate (polyP) was proposed as the membrane component responsible for competence for DNA entry in Escherichia coli (Reusch, R. N., and Sadoff, H. L. (1988) Proc. Natl. Acad. Sci. U.S.A. 85, 4176-4180). While chemical and immunological assays and 1H NMR…
In a spinal turtle, unilateral stimulation in the rostral scratch receptive field elicited rhythmic fictive rostral scratching in ipsilateral hindlimb motor neurons; contralateral hip motor activity was also rhythmic and out-of-phase with ipsilateral hip motor activity. When left and right rostral scratch receptive fi…
Sol‐gel processing of yields amorphous aerogels (ARG) and xerogels (XRG) that serve as high capacity intercalation hosts for lithium ions. The insertion process is highly reversible in both the aerogel and xerogel form, suggesting that they are attractive for rechargeable lithium batteries and other electrochemical de…