Materials Literature
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Abstract A study was made of miscible polymer blends of deuterated polystyrene (d‐PS) and tetramethylbisphenol‐A polycarbonate (TMPC). The Flory interaction parameter χ was obtained from the relation between mutual and tracer diffusion coefficients, D̃ and D * , which were measured by forward recoil spectrometry. The…
Structural characteristics and electrooptical properties of Sn-doped In 2 O 3 (ITO) films were investigated in terms of Sn concentrations from 5.34 to 8.99 (Sn/In at.%) with changing oxygen partial pressure and substrate temperature during deposition, in spite of using an ITO target with the same Sn concentration ( 7.…
Octahedral liquid crystals based upon diketonate complexes of Fe+3, Mn+3, and Cr+3 are reported. These materials display columnar phases with ≥12 sidechains and an ordered smectic phase with 6 sidechains.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBoron Nitride Matrixes and Coatings Obtained from Tris(methylamino)borane. Application to the Protection of Graphite against OxidationB. Bonnetot, F. Guilhon, J. C. Viala, and H. MongeotCite this: Chem. Mater. 1995, 7, 2, 299–303Publication Date (Print):February 1, 1995Publi…
A method is described for the measurement of the rotational viscosity y 1 in nematic liquid crystal cell assemblies. Theoretical formulas to determine y 1 from transient current are developed by considering both director rotation and conduction of impurity ions. The pretilt angle and the product of the drift mobility…
In this time-resolved study of vibrational dynamics of deuterated surface hydroxyls at acid sites in the zeolite Mordenite, we investigate the O–D T1 vibrational lifetime and transient band shifts. It is shown that after infrared excitation of the stretching mode of a surface hydroxyl, the excess energy is rapidly dis…
In order to provide biodegradable poly(hydroxy acid)s by a simple process, fundamental studies on the polycondensation of α-hydroxy acids by enzymes and polyethylene glycol (PEG)-modified enzymes in organic media were carried out. The oligomer formation by unmodified hog liver esterase proceeded well using glycolic ac…
A Fourier analysis of existing and potentially complex refractive index profiles is often useful in the resolution of thin-film design problems. Applications of a frequency-filtering technique, which consists of the suppression of undesired spatial frequencies from the refractive index profiles, are described. A new,…
Polymer reference interaction site model theory with the new molecular closures is employed to numerically and analytically study structurally and interaction potential symmetric binary blends. Both the compressibility and free energy routes to the thermodynamics are studied and the issue of thermodynamic consistency…
Solubility and Phase Behaviour of Polyacrylate Scale Inhibitors and Their Implications for Precipitation Squeeze Treatment M.R. Rabaioli; M.R. Rabaioli Eniricerche SpA Search for other works by this author on: This Site Google Scholar T.P. Lockhart T.P. Lockhart Eniricerche SpA Search for other works by this author on…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNickel(IV) Bis-(3)-1,2-dicarbollide as an Acceptor Molecule in the Synthesis of Electrically Conducting Charge Transfer ComplexesPeter A. Chetcuti, Walther Hofherr, Andre Liegard, Grety Rihs, Guenther Rist, Hugo Keller, and Damian ZechCite this: Organometallics 1995, 14, 2,…
Abstract The thermomechanical behavior of poly(bisphenol A carbonate) (PC) undergoing cold‐drawing (necking) over a large range of temperature and strain rate has been studied. The cold‐drawing of PC has been described from a material particle perspective in terms of true stress and strain relationships. The isotherma…
A detailed analysis of the microstructure of zinc oxide produced by thermal decomposition of zinc oxalate at temperatures in the range 328° to 650°C is described. Parameters describing the breadth and shape of X‐ray diffraction line profiles were obtained by means of pattern decomposition, and a method based on the Vo…
Four new series of liquid crystals are presented. Six of the new chiral compounds which are members of three different series exhibit wide range SmQ phases while their respective racemates and shorter homologues show SmCA, SmC and SmA phases. X-ray investigations on the SmQ phase of two compounds confirm its three-dim…
A novel x-ray diffractometer was installed at the Australian National Beamline Facility at the Photon Factory, Japan, in October 1993. One of the major capabilities of the instrument is high speed high resolution powder diffraction using imaging plate detectors. The diffractometer combines a two circle goniometer and…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNovel Reactions of Iron(III) Tetraphenylporphyrin .pi.-Cation Radicals with PyridineKrystyna Rachlewicz and Lechoslaw Latos-GrazynskiCite this: Inorg. Chem. 1995, 34, 3, 718–727Publication Date (Print):February 1, 1995Publication History Published online1 May 2002Published i…
The moisture resistance of plasma enhanced chemical vapor deposited (PECVD) oxide films used in ultralarge scale integrated (ULSI) device applications has been characterized using infrared (IR) spectroscopy. The differences in the moisture absorption characteristics between tetraethylorthosilicate (TEOS) and silane‐ba…
Mechanistic Study and Modelling of Precipitation Scale Inhibitor Squeeze Processes Alberto Malandrino; Alberto Malandrino Eniricerche SpA Search for other works by this author on: This Site Google Scholar M.D. Yuan; M.D. Yuan Heriot-Watt U. Search for other works by this author on: This Site Google Scholar K.S. Sorbie…
Other| February 01, 1995 Dozyite, a 1:1 regular interstratification of serpentine and chlorite Sturges W. Bailey; Sturges W. Bailey University of Wisconsin-Madison, Department of Geology and Geophysics, Madison, WI, United States Search for other works by this author on: GSW Google Scholar Jillian F. Banfield; Jillian…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolymer Adsorption Effects on Structures and Rheological Properties of Silica SuspensionsMasami Kawaguchi, Yoshinobu Kimura, Tohru Tanahashi, Jun Takeoka, Jun-ichi Suzuki, Tadaya Kato, and Satoru FunahashiCite this: Langmuir 1995, 11, 2, 563–567Publication Date (Print):Febru…