Materials Literature
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Abstract The tensile property of a plastic/rubber blend depends critically on the morphology and connectivity of the two phases. At low plastic volume fractions, the plastic phase forms isolated domains in the matrix of rubber phase, and the tensile property of the blend is largely controlled by the continuous rubber…
The author studies the phase transitions of finite and infinite ferroelectric systems using the Ising model in a transverse field. The mean-field layer approximation is used and the results for the Curie temperature are expressed in terms of general determinants. The effects of surface modification are introduced thro…
Neutron-diffraction and light-scattering studies have been performed on a network glass subject to structural modifications. Large changes of the first sharp diffraction peak (FSDP) and the low frequency dynamics (the boson peak) are demonstrated by gradually changing the intermediate-range structural ordering, the sh…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAnionic synthesis of primary amine-functionalized polystyrenes using 1-[4-[N,N-bis(trimethylsilyl)amino]phenyl]-1-phenylethyleneRoderic P. Quirk and Thomas LynchCite this: Macromolecules 1993, 26, 6, 1206–1212Publication Date (Print):March 1, 1993Publication History Publishe…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAn imidazolate-bridged tetranuclear copper(II) complex: synthesis, magnetic and EPR studies, and crystal structure of [L4Cu4(Im)4](ClO4)4.2H2O (L = 1,4,7-triazacyclononane, Im = imidazolate anion)Phalguni Chaudhuri, Ina Karpenstein, Manuela Winter, Marek Lengen, Christian Bu…
Some improvements to the finite element computation of static magnetic fields in three dimensions using a reduced magnetic scalar potential are presented. Methods are described for obtaining an edge element representation of the rotational part of the magnetic field from a given source current distribution. When the c…
Abstract The dye‐sensitized photooxidation of l ‐histidine (His) and l ‐methionine (Met) and their simplest dipeptides with glycine (Gly) (His‐Gly, Gly‐His, Gly‐Met) and Met‐methyl ester (Met‐ME) mediated by singlet molecular oxygen (O 2 [ g ]) was studied. The overall rate constants in acetonitrile‐H 2 O ( K t ) for…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPoly(arylmethyl) quartet triradicals and quintet tetraradicalsAndrzej Rajca and Suchada UtamapanyaCite this: J. Am. Chem. Soc. 1993, 115, 6, 2396–2401Publication Date (Print):March 1, 1993Publication History Published online1 May 2002Published inissue 1 March 1993https://pub…
Electronic transport properties and specific heats of ordered icosahedral phase alloys in the Al-Cu-Ru-Si and Al-Cu-Fe systems are examined, and comparison with high-quality rhombohedral (3/2) approximant phase samples of Al-Cu-Fe is made. Strong temperature dependence and sensitivity to composition changes of these p…
Abstract Experiments were performed in capillary and slit rheometers to determine the effects of the presence of fluoropolymers at the polymer-wall interface on wall slip and extrudate distortion of a molten high density polyethylene. Two fluoropolymers were used to modify the interface. It was found that one of these…
<div class="htmlview paragraph">A new technique was proposed for the simultaneous measurement of the concentration of fuel vapor and liquid in an evaporating diesel spray injected into a high temperature and high pressure environment. This technique was based on the principle of the absorption of ultraviolet las…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGrowth of silica polymers in a lamellar mesophaseM. Dubois, T. Gulik-Krzywicki, and B. CabaneCite this: Langmuir 1993, 9, 3, 673–680Publication Date (Print):March 1, 1993Publication History Published online1 May 2002Published inissue 1 March 1993https://pubs.acs.org/doi/10.1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOxidation resistant inorganic-porphyrin analog polyoxometalates. 3. Synthesis and x-ray crystallographic characterization of a new heteropolyoxoanion structural type, the diruthenium-oxo-bridged bimetallic inorganic-porphyrin analog KLi15[O{RuIVCl(.alpha.2-P2W17O61)}2].2KCl.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe first surface-attached catenane: self-assembly of a two-component monolayerTianbao Lu, Litao Zhang, George W. Gokel, and Angel E. KaiferCite this: J. Am. Chem. Soc. 1993, 115, 6, 2542–2543Publication Date (Print):March 1, 1993Publication History Published online1 May 200…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSimulation of elastic and plastic response in the glassy polycarbonate of 4,4'-isopropylidenediphenolM. Hutnik, A. S. Argon, and U. W. SuterCite this: Macromolecules 1993, 26, 5, 1097–1108Publication Date (Print):March 1, 1993Publication History Published online1 May 2002Pub…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMixed monolayers formed by the self-assembly on gold of thiol-functionalized anthraquinones and 1-alkanethiolsLitao Zhang, Tianbao Lu, George W. Gokel, and Angel E. KaiferCite this: Langmuir 1993, 9, 3, 786–791Publication Date (Print):March 1, 1993Publication History Publish…
The photophysical properties of 3,3'-dialkylthiacarbocyanine iodides and chlorides were measured in various solvents. It was found that photoisomerization and fluorescence are the major contributors to the deactivation of the excited singlet state; intersystem crossing occurs with only a very low efficiency. In ethano…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew effective catalysts for Mukaiyama-aldol and -Michael reactions: bismuth trichloride-metallic iodide systemsChristophe Le Roux, Hafida Gaspard-Iloughmane, Jacques Dubac, Joel Jaud, and Pierre VignauxCite this: J. Org. Chem. 1993, 58, 7, 1835–1839Publication Date (Print):M…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDependence of the OBDD morphology on diblock copolymer molecular weight in copolymer/homopolymer blendsRichard J. Spontak, Steven D. Smith, and Arman AshrafCite this: Macromolecules 1993, 26, 5, 956–962Publication Date (Print):March 1, 1993Publication History Published onlin…
Based on experimental and modeling studies, the rate of increase in the martensite start temperature M s for the tetragonal‐to‐monoclinic transformation with increase in zirconia grain size is found to rise with decrease in ZrO 2 content in the zirconia‐toughened alumina ZTA system. The observed grain size dependence…