Materials Literature
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The type of alignment achieved with discotic liquid crystals is important for a number of applications. It is found to depend decisively on the structure of the substrate. Infrared dichroism experiments are used to study the alignment of truxene and triphenylene cores (see Fig.) on amorphous silicon and polycrystallin…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDiffusion of Simple Liquids in Porous Sol-Gel GlassN. Koone, Y. Shao, and T. W. ZerdaCite this: J. Phys. Chem. 1995, 99, 46, 16976–16981Publication Date (Print):November 1, 1995Publication History Published online1 May 2002Published inissue 1 November 1995https://pubs.acs.or…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, Tuning of the Stereochemistry, and Physical Properties of Cobalt(II) Tropocoronand ComplexesB. Scott Jaynes, Linda H. Doerrer, Shuncheng Liu, and Stephen J. LippardCite this: Inorg. Chem. 1995, 34, 23, 5735–5744Publication Date (Print):November 1, 1995Publication…
The magnetic properties of a series of Ce2Fe17−xSix solid solutions with x equal to 0.0, 0.23, 0.4, 0.6, 0.8, 1.02, 1.98, and 3.20 have been studied by magnetic measurements, neutron diffraction, and Mössbauer spectroscopy. An x-ray-diffraction study indicates that the compounds adopt the rhombohedral Th2Zn17-type str…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure and Dynamics of CaAl2O4 from Liquid to Glass: A High-Temperature 27Al NMR Time-Resolved StudyDominique Massiot, Dominique Trumeau, Bruno Touzo, Ian Farnan, Jean-Claude Rifflet, Andre Douy, and Jean-Pierre CouturesCite this: J. Phys. Chem. 1995, 99, 44, 16455–16459P…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInclusion-Enhanced Optical Yield and E/Z Ratio in Enantiodifferentiating Photoisomerization of Cyclooctene Included and Sensitized by .beta.-Cyclodextrin MonobenzoateYoshihisa Inoue, Fang Dong, Keiko Yamamoto, Lin-Hui Tong, Hiroshi Tsuneishi, Tadao Hakushi, and Akira TaiCite…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDegradable Hyperbranched Poly(bis(undecenyloxy)methylsilane)sAziz M. Muzafarov, Monika Golly, and Martin MoellerCite this: Macromolecules 1995, 28, 24, 8444–8446Publication Date (Print):November 1, 1995Publication History Published online1 May 2002Published inissue 1 Novembe…
The effect of annealing on the structure and properties of two polypropylene (PP) films, one displaying the monoclinic α-structure and the other the quenched structure, has been investigated using a combination of differential scanning calorimetry (DSC), small-and wide-angle x-ray scattering (SAXS and WAXS), and uniax…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, Characterization, and Ceramic Conversion Reactions of Borazine/Silazane Copolymers: New Polymeric Precursors to SiNCB CeramicsThomas Wideman, Kai Su, Edward E. Remsen, Gregg A. Zank, and Larry G. SneddonCite this: Chem. Mater. 1995, 7, 11, 2203–2212Publication Dat…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT.beta.-D-Cellotetraose Hemihydrate as a Structural Model for Cellulose II. An X-ray Diffraction StudyKatrin Gessler, Norbert Krauss, Thomas Steiner, Christian Betzel, Anatole Sarko, and Wolfram SaengerCite this: J. Am. Chem. Soc. 1995, 117, 46, 11397–11406Publication Date (P…
Fabric deformation characterized by large displacements and rotations but small strains is analyzed using a geometric nonlinear finite element method. The fabrics are modeled by shell/plate elements. Special considerations for applying the finite element method to fabric analysis are discussed and several examples of…
The Escherichia coli periplasmic dipeptide binding protein functions in both peptide transport and taxis toward peptides. The structure of the dipeptide binding protein in complex with Gly-Leu (glycyl-L-leucine) has been determined at 3.2 A resolution. The binding site for dipeptides is designed to recognize the ligan…
A novel trilevel resist process has been developed which enables high-contrast imaging of periodic structures with spatial periods down to 200 nm in thick resist on highly reflective substrates, using λ=351.1 nm argon-ion laser exposure. The process utilizes a 200-nm-thick, high-contrast, imaging resist layer, a thin…
We present a theoretical framework for estimating the effects of a superlattice (SL) on the thermoelectric (TE) transport in semiconductors. We consider both transverse and parallel conduction through the SL, and in the latter case, the possibility of modulation doping. Our calculations of electron and phonon transpor…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHysteresis and Incubation in the Dynamics of Volume Transition of Spherical GelsTsutomu Tomari and Masao DoiCite this: Macromolecules 1995, 28, 24, 8334–8343Publication Date (Print):November 1, 1995Publication History Published online1 May 2002Published inissue 1 November 19…
The R ‐curve behavior was characterized by the Vickers indentation flaw technique, for highly anisotropic silicon nitride, a silicon nitride whose fibrous grains are highly aligned. The measured crack lengths ranged from 30 to 500 μm. The fracture resistance of a conventional self‐reinforced silicon nitride was determ…
peer reviewed
The results of a systematic photoluminescence study of ZnGa2O4:Mn powder phosphor are reported. At room temperature this phosphor exhibits bright green luminescence with a spectral peak at 2.46 eV and Commission International de l’Eclairage chromaticity coordinates of x=0.073 and y=0.696. At low temperatures the lumin…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEnvironmental Catalysis: Adsorption and Decomposition of Nitrous Oxide on ZirconiaT. M. Miller and V. H. GrassianCite this: J. Am. Chem. Soc. 1995, 117, 44, 10969–10975Publication Date (Print):November 1, 1995Publication History Published online1 May 2002Published inissue 1…
Poly[4′-[[(2-methacryloyloxy)ethyl]ethylamino]azobenzene] (pMAEA) was prepared. Its reversible optical storage properties were studied and compared with the properties of previously reported poly[4-(2-methacryloyloxy)ethylazobenzene] (pMEA) and poly[4-nitrophenyl-4′-[[2-(methacryloyloxy)ethyl]ethyl-amino]phenyldiazene…