Françis Carré、Robert J. P. Corriu、Geng Bolin 等 5 位作者1993-07-01Organometallics
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAminosilanes in organic synthesis. Preparation of new expanded porphyrin ligands and bimetallic transition-metal complexes. Crystal structure of a tetrapyrrole macrocycle dirhodium complexF. H. Carre, R. J. P. Corriu, Geng Bolin, J. J. E. Moreau, and C. VernhetCite this: Org…
Porphyrin and Phthalocyanine ChemistryMolecular Junctions and NanostructuresFerrocene Chemistry and Applications
Bin Mei、J. I. Scheinbeim、B. A. Newman1993-07-01Ferroelectrics
The combined results of the present investigation of Nylon 5 and Nylon 9 and the previous investigation of Nylon 11 and Nylon 7 reveal that the odd-numbered nylons exhibit classic ferroelectric J-E and D-E hysteresis behavior at room temperature. In addition, the remanent polarization, P r, of Nylon 5 and Nylon 9 is f…
Advanced Sensor and Energy Harvesting MaterialsPolymer Nanocomposites and PropertiesDielectric materials and actuators
Burkhard König、Burkhard Knieriem、Armin de Meijere1993-07-01Chemische Berichte
Abstract The reaction of [2.2]paracyclophane ( 1 ) with liquid bromine affords a 1:1 mixture of only two isomeric products, the pseudo‐para 2 and pseudo‐ortho tetrabromide 3 . The structure of the pseudo‐para isomer 2 has been determined by X‐ray structure analysis. Fourfold palladium‐catalyzed coupling with styrenes…
Catalytic Cross-Coupling ReactionsLuminescence and Fluorescent MaterialsPhotochromic and Fluorescence Chemistry
Sandeep Kumar、Ellen Wachtel、Ehud Keinan1993-07-01The Journal of Organic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHexaalkoxytricycloquinazolines: new discotic liquid crystalsSandeep Kumar, Ellen J. Wachtel, and Ehud KeinanCite this: J. Org. Chem. 1993, 58, 15, 3821–3827Publication Date (Print):July 1, 1993Publication History Published online1 May 2002Published inissue 1 July 1993https:/…
Liquid Crystal Research AdvancementsNonlinear Optical Materials ResearchNonlinear Dynamics and Pattern Formation
M.J. Ruhl1993-07-01Chemical engineering progress
One of the most effective methods of controlling emissions of volatile organic compounds (VOCs) is also one of the most economical--adsorption, usually using activated carbon as the adsorbent. This process is cost-effective because it is typically able to recover many VOCs for reuse. A particularly common application…
Catalytic Processes in Materials ScienceVehicle emissions and performanceAir Quality Monitoring and Forecasting
Guang-Wu Du、Frank Ko1993-07-01Journal of Reinforced Plastics and Composites
The traditional approach used in modeling of composites reinforced by three-dimensional (3-D) braids is to assume a simple unit cell geometry of a 3-D braided structure with known fiber volume fraction and orientation. In this article, we first ex amine 3-D braiding methods in the light of braid structures, followed b…
Mechanical Behavior of CompositesTextile materials and evaluationsStructural Analysis and Optimization
Reza Arshady、M. H. George1993-07-01Polymer Engineering and Science
Abstract This review presents a general picture of suspension, dispersion, and interfacial polycondensation processes employed for the preparation of beaded resins, dry powders, and high solid dispersions. The polymer systems covered include polyamides, polyesters, polycarbonates, polyurethanes, and phenol‐formaldehyd…
Crystallization and Solubility StudiesThermal and Kinetic AnalysisAdsorption, diffusion, and thermodynamic properties of materials
Gary P. Halada、C.R. Clayton1993-07-01Journal of Vacuum Science & Technology A Vacuum Surfaces and Films
In high nitrogen stainless steels and nitrogen surface-doped Mo-containing alloys, nitrogen has been shown to enhance passivity. The mechanism of this apparent Mo–N synergism appeared to be twofold. First, the formation of stable surface nitrides affects a reduction in active dissolution, and, second, reactions betwee…
Corrosion Behavior and InhibitionMetal and Thin Film MechanicsHydrogen embrittlement and corrosion behaviors in metals
William J. Kruper、Philip R. Rudolf、Charles A. Langhoff1993-07-01The Journal of Organic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUnexpected selectivity in the alkylation of polyazamacrocyclesWilliam J. Kruper Jr., Philip R. Rudolf, and Charles A. LanghoffCite this: J. Org. Chem. 1993, 58, 15, 3869–3876Publication Date (Print):July 1, 1993Publication History Published online1 May 2002Published inissue…
Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesSynthesis and properties of polymers
Shr‐Nan Bai、Tseung‐Yuen Tseng1993-07-01Journal of Applied Physics
The electrical properties of the ZnO varistors are demonstrated in this present study to be affected by the sintering temperature. The variation of the non-ohmic behavior with sintering temperature is indicated from I-V and C-V measurements to be a result of the changes of the interface defect density at the grain bou…
ZnO doping and propertiesAdvanced ceramic materials synthesisSemiconductor materials and interfaces
Todd M. Rearick、Gary L. Catchen、James Adams1993-07-01Physical review. B, Condensed matter
Perturbed-angular-correlation (PAC) spectroscopy was used to measure combined nuclear-magnetic-dipole and nuclear-electric-quadrupole interactions in rare-earth orthoferrite (REO) ceramics, R${\mathrm{FeO}}_{3}$ (R=La,Pr,Nd,...,Lu). The rare-earth orthoferrites are canted antiferromagnets that have orthorhombically di…
Multiferroics and related materialsMagnetic Properties and Synthesis of FerritesAdvanced Condensed Matter Physics
R. Gonzalez‐Nunez、Basil D. Favis、Pierre J. Carreau 等 4 位作者1993-07-01Polymer Engineering and Science
Abstract The morphology of the dispersed phase in immiscible polymer blends plays an important role in the determination of the final physical properties. This paper considers factors that influence the final state of deformation of the dispersed phase, and in particular, the formation of fibers and lamellae. Blends o…
Polymer crystallization and propertiesRheology and Fluid Dynamics StudiesPolymer Foaming and Composites
Christopher W. Allen1993-07-01Journal of Fire Sciences
A survey of the use of cyclo- and poly(phosphazenes) in fire resis tant applications is presented. Where appropriate, synthesis and commercial availability will be indicated. Two fundamentally different approaches, phosphazenes as additives or as intrinsically flame resistant materials, will be discussed. While the fo…
Flame retardant materials and properties
Hans Lochbihler、Ricardo A. Depine1993-07-01Applied Optics
We present a theoretical approach for calculating the fields diffracted by gratings made of highlyconducting wires that have a rectangular shape. The fields between the wires are represented in terms of modal expansions that satisfy the approximated impedance boundary condition. Our results show thatthis procedure is…
Plasmonic and Surface Plasmon ResearchPhotonic and Optical DevicesOptical Coatings and Gratings
Kazunori Tanaka、Kazuyuki Mori、Shigeki Mizuno1993-07-01The Journal of Biochemistry
The light protein components of silk fibroin were analyzed by Western blotting using polyclonal antibodies against two synthetic peptides that are segment of the light (L-) chain [Yamaguchi et al. (1989) J. Mol. Biol. 210, 127-139] and P25 [Chevillard et al. (1986) Sericologia 26, 435-449], respectively, and against t…
Antimicrobial Peptides and ActivitiesSilk-based biomaterials and applicationsSilkworms and Sericulture Research
M. J. Sablik、S. W. Rubin、L. A. Riley 等 6 位作者1993-07-01Journal of Applied Physics
Although descriptions of the effect of stress on spontaneous magnetization within a single domain already exist, there remains no adequate mathematical model for the effects of noncoaxial magnetic field and stress on bulk magnetization in a multidomained specimen. This article addresses the problem and provides a phen…
Magnetic properties of thin filmsMicrostructure and Mechanical Properties of SteelsMagnetic Properties and Applications
Alain Le Borgne、Valérie Vincens、Muriel Jouglard 等 4 位作者1993-07-01Makromolekulare Chemie Macromolecular Symposia
Abstract Bifunctional telechelics with defined structure can be prepared by oligomerization of oxiranes, β‐butyrolactone and L‐lactide using aluminium Schiff's base complexes as initiators. Chiral initiator (SALCENAlCl) shows a stereoelective character leading to preferential oligomerization of one enantiomer from a r…
biodegradable polymer synthesis and propertiesSynthetic Organic Chemistry MethodsCarbon dioxide utilization in catalysis
Finizia Auriemma、Vittorio Petraccone、Francesco Dal Poggetto 等 7 位作者1993-07-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMesomorphic form of syndiotactic polystyrene as composed of small imperfect crystals of the hexagonal (.alpha.) crystalline formFinizia Auriemma, Vittorio Petraccone, Francesco Dal Poggetto, Claudio De Rosa, Gaetano Guerra, Carla Manfredi, and Paolo CorradiniCite this: Macro…
Polymer crystallization and propertiesMaterial Properties and Applications
D D N Singh、Atanu Dey1993-07-01CORROSION
The role of different inorganic cations of several elements and organic materials in combination with different concentrations of propargyl alcohol (PA) was investigated in an effort to control the dissolution of mild steel in boiling (102 ± 1°C) hydrochloric acid (HCl) solution. Inorganic cations of chromium (Cr6+),…
Corrosion Behavior and InhibitionConcrete Corrosion and Durability
Edgar Zeller、Holger Beruda、Hubert Schmidbaur1993-07-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTetrahedral gold cluster [Au4]2+: crystal structure of {[(tert-Bu)3PAu]4}2+(BF4-)2.2CHCl3Edgar Zeller, Holger Beruda, and Hubert SchmidbaurCite this: Inorg. Chem. 1993, 32, 15, 3203–3204Publication Date (Print):July 1, 1993Publication History Published online1 May 2002Publis…
Organometallic Complex Synthesis and CatalysisNanocluster Synthesis and ApplicationsInorganic Chemistry and Materials