Materials Literature
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The efficiencies of a solid absorption heat pump are calculated with the help of chemical models. The first one is based on a reversible analysis where only the energy contributions to regenerate and insure continuous operations of the engine are taken into account. In the second one, the complete thermochemical behav…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of poly[1-(trimethylsilyl)-1-propyne] with extremely high molecular weight by using tantalum pentachloride-triphenylbismuth (1:1) catalystToshio Masuda, Eiji Isobe, and Toshiyuki HamanoCite this: Macromolecules 1986, 19, 9, 2448–2450Publication Date (Print):Septemb…
Measurements of thermodynamic compatibility, technological properties, stress-strain isotherms at high elongation, birefringence, and wide-angle x-ray diffraction have been made on blends of guayule rubber (cis-1,4-polyisoprene) and trans-polyisoprene (t-PI). Both cross-linked and un-cross-linked systems, prepared by…
Polypropylene containing the blowing agent azodicarbonate was first grafted with vinyl trimethoxy silane, then crosslinked using the hot water treatment. Two heating stages initiated the blowing agent and formed polypropylene structural foam. The effects of such reaction variables as initiator, cross-linking agent, cr…
Abstract Mineralogical analysis of Devonian Red Marl using XRD, TEM, SEM and EDAX showed that it consisted of illite, quartz, and feldspar with minor amounts of chlorite and hematite. Physico-chemical changes in the soil minerals on reaction with lime (calcium hydroxide) from one day up to two years were investigated…
The reduction of proline by Clostridium sporogenes NCIB8053 is coupled to transmembrane proton translocation in an uncoupler-sensitive fashion (and might therefore conserve free energy). This finding serves to explain the increase in the growth yield of this organism when proline is added to a defined growth medium co…
Heat treatment of polyester yarns induces the selective crystallization of the cyclic trimer [(GT)3] in the form of polygonal solids on the fiber surfaces. At the temperature studied, namely, 200°C, the diffusion rate of (GT)3 appears to be very rapid. Small quantities of the cyclic tetramer were also found. The total…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and properties of high-molecular-weight step-growth polymers from bismaleimidesJerry E. WhiteCite this: Ind. Eng. Chem. Prod. Res. Dev. 1986, 25, 3, 395–400Publication Date (Print):September 1, 1986Publication History Published online1 May 2002Published inissue 1 S…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA nickel(III) complex with a NiO6 coordination sphereSamaresh Bhattacharya, Rabindranath Mukherjee, and Animesh ChakravortyCite this: Inorg. Chem. 1986, 25, 19, 3448–3452Publication Date (Print):September 1, 1986Publication History Published online1 May 2002Published inissue…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthetic analog approach to metallobleomycins. 1. Syntheses, structures and properties of the copper complexes of two peptides related to bleomycinsSteven J. Brown, Xiaolin Tao, Douglas W. Stephan, and Pradip K. MascharakCite this: Inorg. Chem. 1986, 25, 19, 3377–3384Public…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrganoborane-catalyzed hydroalumination of olefinsKeiji. Maruoka, Hiromi. Sano, Kiyotaka. Shinoda, Shuichi. Nakai, and Hisashi. YamamotoCite this: J. Am. Chem. Soc. 1986, 108, 19, 6036–6038Publication Date (Print):September 1, 1986Publication History Published online1 May 20…
Two independent state-of-the-art equations for incipient hydroplaning speeds, which were regressed from experimental data for different ranges of magnitudes of water film thicknesses, are investigated relative to merging them into a single criterion. One equation was developed for water film thicknesses above 0.10 in.…
Polymer surfaces have been modified by chemical reaction or thin film deposition using a capacitatively coupled plasma RF-discharge system. This has allowed the production of a graded, reproducible series of surfaces with surface energies ranging from low to high. Three gases, hexafluoroethane (C2F6), perfluoropropane…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDioxygenyl hexafluoroantimonate: a useful reagent for preparing cation radical salts in good yieldJ. P. Dinnocenzo and T. E. BanachCite this: J. Am. Chem. Soc. 1986, 108, 19, 6063–6065Publication Date (Print):September 1, 1986Publication History Published online1 May 2002Pub…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOne-electron oxidation of the porphyrin ring of cobaltous octaethylporphyrin (CoIIOEP). Absorption and resonance Raman spectral characteristics of the CoIIOEP+.cntdot.ClO4- .pi.-cation radicalA. Salehi, W. A. Oertling, G. T. Babcock, and C. K. ChangCite this: J. Am. Chem. So…
Using the Landau expansion simple formulas are found that allow for systematic calculations of the tricritical temperature for a given molecular model. The theory is applied to some molecular models of the nematic–smectic A (NA) phase transition of liquid crystals. It is shown exactly that for a large class of molecul…
Abstract The available literature was reviewed to determine the nature and extent of information available on the thermal decomposition products and the toxicity of the combustion products of polyester materials used in consumer applications such as textiles and building construction. This literature review is limited…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFoams: basic properties with application to porous mediaDaniel D. Huang, Alexander Nikolov, and Darsh T. WasanCite this: Langmuir 1986, 2, 5, 672–677Publication Date (Print):September 1, 1986Publication History Published online1 May 2002Published inissue 1 September 1986http…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStability of hydrophobic foamsStig E. Friberg, Irena Blute, Hironobu Kunieda, and Per SteniusCite this: Langmuir 1986, 2, 5, 659–664Publication Date (Print):September 1, 1986Publication History Published online1 May 2002Published inissue 1 September 1986https://pubs.acs.org/…
In this paper a cause of difference for the Steinmetz constant between polycrystalline Mn-Zn ferrite cores and other materials is qualitatively discussed by considering both irreversible domain wall motion and wall extinction.