Materials Literature
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The paper reports on a study of the influence of the size of the particles of alumina trihydrate (ATH-Al/sub 2/O/sub 3/.3H/sub 2/O) filler on the life of room temperature vulcanised (RTV) silicone rubber coating in a salt-fog chamber. The particle sizes examined include 1.0, 4.5, 13, 17 and 75 /spl mu/m. The optimum s…
An automated apparatus has been developed to measure the transport of water vapor through coated and uncoated fabrics, fabric laminates, thin foams, and solid films under a variety of conditions. The apparatus is more convenient to use than the traditional test methods for textiles and clothing materials; it allows on…
Complete conductivity spectra of a lithium ion-conducting glass of composition B2O3-0·56Li2O-0·45LiBr have been taken at twelve temperatures, covering the frequency range from a few hertz to about 50THz. For the first time, a separation of the hopping and vibrational contributions to the spectra has been performed. Th…
Abstract New three-component organic conductors, (BEDT-TTF)2MM′(SCN)4 [M = K, Rb, Cs; M′ = Co, Zn, Cd], are prepared. The crystal structure analyses of α-ET2CsCo(SCN)4, ETZn(SCN)3, α-ET2RbZn(SCN)4, α-ET2CsZn(SCN)4, α-ETCd0.66(SCN)2, and ET2CsCd(SCN)4 are carried out. Most of salts have the α-type donor arrangement and…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and Characterization of Carboxylic Acid-Functionalized Polypyrrole-Silica MicroparticlesShuichi Maeda, Roberto Corradi, and Steven P. ArmesCite this: Macromolecules 1995, 28, 8, 2905–2911Publication Date (Print):April 1, 1995Publication History Published online1 Ma…
Crack deflection in electrophoretically deposited Al 2 O 3 / TZ‐3Y (3 mol% Y 2 O 3 ‐stabilized tetragonal ZrO 2 ) lamellar composites with strong interfaces is described. The fracture behavior of, and crack paths in, these materials were evaluated using indentation and four‐point bend tests. The effects of residual an…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMorphology of Blends of Linear and Long-Chain-Branched Polyethylenes in the Solid State: A Study by SANS, SAXS, and DSCG. D. Wignall, J. D. Londono, J. S. Lin, R. G. Alamo, M. J. Galante, and L. MandelkernCite this: Macromolecules 1995, 28, 9, 3156–3167Publication Date (Prin…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffects of Molecular Structure on the Electroactive and Optical Properties of Conjugated Rigid-Rod Poly(benzobisazoles)John A. Osaheni and Samson A. JenekheCite this: Chem. Mater. 1995, 7, 4, 672–682Publication Date (Print):April 1, 1995Publication History Published online1…
Abstract A novel design of a biodegradable carrier for drug delivery was established by constructing a supramolecular assembly of drugs and polymer backbones without any covalent bonds. A biodegradable polyrotaxane was synthesized in which α‐cyclodextrins (α‐CDs) as drug carriers were threaded onto poly(ethylene glyco…
We have studied the \ensuremath{\beta} relaxation of the density autocorrelation for a two dimensional model fluid via molecular dynamics (MD) simulation. We have found that correlated motions composed of many particles occur in the time scales of about 20 times the time scales of the thermal oscillations, which corre…
Electrochemomechanical polymer actuators were fabricated by using the electro-deposited poly-aniline film. Using LASER displacement meter, we can easily get the in-situ observation of the displacement and the cyclic voltammogram[1]. At the redox reaction from leuco-emeraldine salt to emeraldine salt(ES), PANI film sho…
Analytical solutions of and experimental results on the oxidation kinetics of carbon in a pore are presented. Reaction rate, reaction sequence, oxidant partial pressure, total system pressure, pore/crack dimensions, and temperature are analyzed with respect to the influence of each on an overall linear‐parabolic rate…
Human monocytes isolated from peripheral venous blood were assayed for their ability to adhere to various polymers. The culture supernatants were also assayed for the cytokines, interleukin-1 beta (IL-beta), interleukin-6 (IL-6), and tumor necrosis factor-alpha (TNF-alpha). The polymers evaluated for adherence and cyt…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffect of quaternization on electron diffusion coefficients for redox hydrogels based on poly(4-vinylpyridine)Atsushi Aoki, Ravi Rajagopalan, and Adam HellerCite this: J. Phys. Chem. 1995, 99, 14, 5102–5110Publication Date (Print):April 1, 1995Publication History Published o…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and Crystal Structure of the First Inverse 12-Metallacrown-4Ann J. Stemmler, Jeff W. Kampf, and Vincent L. PecoraroCite this: Inorg. Chem. 1995, 34, 9, 2271–2272Publication Date (Print):April 1, 1995Publication History Published online1 May 2002Published inissue 1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNature of Impurities in .pi.-Conjugated Polymers Prepared by Ferric Chloride and Their Effect on the Electrical Properties of Metal-Insulator-Semiconductor StructuresMohamed S. A. Abdou, Xiaotang Lu, Zi W. Xie, Frank Orfino, M. Jamal Deen, and Steven HoldcroftCite this: Chem…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrochemical Synthesis of Extended TTFD. Lorcy, R. Carlier, A. Robert, A. Tallec, P. Le Magueres, and L. OuahabCite this: J. Org. Chem. 1995, 60, 8, 2443–2447Publication Date (Print):April 1, 1995Publication History Published online1 May 2002Published inissue 1 April 1995…
Abstract Diblock copolymers composed of poly(ε‐caprolactone) and poly(L‐lactide) were synthesized via sequential living ring‐opening polymerization of ε‐caprolactone and L‐lactide in dichloromethane initiated by Y 5 (μ‐O)(O i Pr) 13 (yttrium isopropoxide). A series of diblock copolymers was synthesized with ε‐caprolac…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular Motions and Viscoelasticity of Amorphous Polymers near TgTadashi Inoue, Marcus T. Cicerone, and M. D. EdigerCite this: Macromolecules 1995, 28, 9, 3425–3433Publication Date (Print):April 1, 1995Publication History Published online1 May 2002Published inissue 1 April…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolymer Films on Electrodes. 26. Study of Ion Transport and Electron Transfer at Polypyrrole Films by Scanning Electrochemical MicroscopyMeral Arca, Michael V. Mirkin, and Allen J. BardCite this: J. Phys. Chem. 1995, 99, 14, 5040–5050Publication Date (Print):April 1, 1995Pub…