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 ISSUEPREVCommunicationNEXTCO2 as the Ultimate Degradation Product in the H2O2 Oxidation of 2,4,6-Trichlorophenol Catalyzed by Iron TetrasulfophthalocyanineAlexander Sorokin, Sophie De Suzzoni-Dezard, Didier Poullain, Jean-Pierre Noël, and Bernard MeunierView Author Information Laboratorie de Ch…
The degree of in-plane molecular orientation of various polyimides (PIs) and their precursors, poly(amic acid)s (PAAs), were estimated by measuring the visible dichroic absorption at an incidence angle for a rod-like dye (perylenediimide, PEDI) dispersed in the matrices. The effects of PI chain structure, film thickne…
Software based on nonlinear shell theory can simulate 3D motions related to real fabric-manufacturing processes. This simulation capability advances the technologies necessary for automating the textile and apparel industries.
Subtilisin Carlsberg dissolved in aqueous solution is several orders of magnitude more active than the enzyme suspended in anhydrous acetonitrile. In order to ascertain why, we employed crystalline subtilisin lightly cross-linked with glutaraldehyde as a catalyst in both aqueous and organic media. The structure of thi…
Surface macromolecular architectures with regional dimensional precision, control of the thickness of a graft layer, and blocks of graft chains were attempted using the surface photo-graft copolymerization method pioneered by Otsu et al. This is based on the photochemistry of benzyl N, N -diethyldithiocarbamate, which…
This paper describes the synthesis and characterization of self-assembled second-order nonlinear optical multilayer materials containing the high-hyperpolarizability [(aminophenyl)azo]pyridinium chromophore. The chromophoric multilayers are assembled on clean glass or single-crystal silicon substrates via the followin…
The surface structure of mesoporous silica crystals FSM-16 with a narrowly distributed pore size has been studied by FTIR, measurement of SiOH number and adsorption of N2 and H2O. IR spectra of FSM-16 outgassed at temperatures above 170 °C showed a sharp band at 3740 cm–1 due to free SiOH and a broad shoulder at 3600–…
Azobenzene monolayers on silicon have been prepared by two synthetic methods: (1) chemisorption of triethoxysilanes, and (2) acylation of amine-functionalized self-assembled monolayers with acid chloride derivatives. A series of films were prepared with different methylene spacer lengths and different terminal end gro…
This book gives a systematic overview on the scientific fundamentals of crystal growth from the classical phenomenological description to the recent theoretical contributions of statistical physics such as studies on surface roughening and on the pattern formation in the diffusion-limited growth. The book emphasizes p…
The methylation of a nickel(II) complex (CTPP)Ni II of 2-aza-5,10,15,20-tetraphenyl-21-carbaporphyrin (CTPPH 2 ) with the mild methylating agent methyl iodide yields novel stable organonickel(II) complexes: diamagnetic (21-CH 3 TPP)Ni II and two scarce paramagnetic species (2-NH-21-CH 3 CTPP)Ni II X and (2-NCH 3 -21-C…
A new Schiff-base ligand based on the condensation of diaminomaleonitrile and 4-(diethylamino)salicylaldehyde is reported with its copper, nickel, and zinc complexes. Their second-order nonlinear optical properties are investigated by electric field induced second harmonic (EFISH) and ZINDO quantum-chemical calculatio…
We report here the direct synthesis of a hexagonal form of manganese dioxide using mild hydrothermal methods. The reaction of potassium or sodium permanganate in water at 170 °C leads directly to potassium or sodium manganese dioxide, Alk ≈0.25 MnO 2 ·0.6H 2 O, with a R 3̄ m rhombohedral structure like Li x (H 2 O)TiS…
ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTRadical Living Graft Polymerization on the Surface of Polymeric MaterialsWantai Yang and Bengt RånbyView Author Information Department of Polymer Technology, Royal Institute of Technology, 10044 Stockholm, Sweden Cite this: Macromolecules 1996, 29, 9, 3308–3310Publication Date…
The pulsed electroacoustic (PEA) method is widely known to be an excellent method for measuring the space charge distribution that accumulates in thick dielectric materials (1 to 5 mm). We have refined the PEA measurement system for use on thin dielectric materials. With FFT deconvolution to compensate for the frequen…
The temperature- and pressure-driven solid state valence tautomeric transformations of [Co II (3,5DTBSQ) 2 (phen)]·C 6 H 5 CH) and nonsolvated [Co II (3,5DTBSQ) 2 (phen)] have been studied by EXAFS and XANES. When the toluene solvate sample is cooled it converts in the 270−215 K region ( T c = 240 K) from a high-spin…
Abstract The use of synthetic ion‐exchangers (commonly referred to as resins ) to study natural media has steadily increased. These materials allow new and different ways to solve problems that cannot be resolved through usual approaches. A lack of knowledge or limited experience, however, has led to apparent confusio…
We present a theoretical description of polymer adsorption from solution which is based on a mean field approximation but which goes beyond the standard ground state dominance approximation. The properties of the adsorbed polymer chains are described by two coupled order parameters. This allows a description of the ch…
A semiquantitative model is presented for the incorporation of species derived from electrolyte anions into amorphous barrier‐type films formed on aluminum in aqueous electrolytes at ambient temperature. The model relates the film compositions to the concentrations of adsorbed electrolyte anions which form the double‐…
The first key reference source of its kind to feature current information on biomedical applications for titanium and beta-titanium alloys.30 comprehensive peer-reviewed papers from leading experts in the field have been divided into 7 major categories:
The amino acid sequences of two tryptic peptides derived from purified preparations of I1PP2A indicated that this potent heat-stable protein inhibitor of protein phosphatase 2A (PP2A) may be equivalent to putative histocompatibility leukocyte antigens class II-associated protein I (PHAP-I). Experiments using purified…