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  • 1
    Electronic Resource
    Electronic Resource
    Mitteilungen aus dem Laboratorium für Geophysik der Carnegie Institution in Washington. 7. Vorläufiger Bericht über das ternäre System CaO—Al2O3—SiO2. Eine Untersuchung über die Konstitution der Portlandzement-Klinker (1911)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 71 (1911), S. 19-64 
    Details
    ISSN: 0863-1778
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die binären Systeme. In der früheren Untersuchung von Gemischen aus reinem Kalk und Kieselsäure konnten zwei Verbindungen, das Metasililrat (CaO. SiO2) und das Orthosilikat (2CaO. SiO2) mit Sicherheit nachgewiesen werden, aber keine Spur des bisher allgemein angenommenen Tricalciumsilikats war in den Gemischen von reinem Kalk und reiner Kieselsäure aufzufinden. In dem System aus drei Komponenten andererseits tritt Tricalciumsilikat sogleich bei Zusatz von Tonerde zu einem Gemisch von Kalk und Kieselsäure in geeigneter Zusammensetzung auf, und nach einer langen und schwierigen Experimentaluntersuchung, bei der etwa 1000 Erwärmungsversuche mit verschiedenen Präparaten notwendig waren, von denen viele zwischen 1800 und 1900° ausgeführt werden mussten, konnte das Tricalciumsilikat bis auf einen kleinem Überschuss (1-2%) von Orthosilikst oder Kalk oder von beiden in reinem Zustand dargestellt werden.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19110710103
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  • 2
    Electronic Resource
    Electronic Resource
    Retrospective (1987)
    New York, NY : Wiley-Blackwell
    Journal of Chemometrics 1 (1987), S. 3-6 
    Details
    ISSN: 0886-9383
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cem.1180010103
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  • 3
    Electronic Resource
    Electronic Resource
    Mitteilungen aus dem Laboratorium für Geophysik der Carnegie Institution in Washington. 3. Die binären Systeme von Tonerde mit Kieselsäure, Kalk und Magnesia (1910)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 68 (1910), S. 370-420 
    Details
    ISSN: 0863-1778
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19100680133
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  • 4
    Electronic Resource
    Electronic Resource
    Use of cobalt complexes as activators in emulsion copolymerization of butadiene and styrene (1948)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 3 (1948), S. 181-194 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Cobalt complex compounds exhibited varying degrees of activation and retardation in butadiene-styrene-soap emulsion polymerization systems at 20-50°C. An accompanying effect was the wasting of modifier, particularly by large concentrations of activator. The most active complexes for use with dodecyl mercaptan were those in which the cobalt was coordinated with two or more negative groups other than thiocyanate, and in which the neutral coordinated groups were not ethylenediamine.
    Additional Material: 17 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1948.120030205
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  • 5
    Electronic Resource
    Electronic Resource
    Crystallinity in equimolar highly alternating butadiene-methyl methacrylate copolymers (1972)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Letters Edition 10 (1972), S. 799-804 
    Details
    ISSN: 0360-6384
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1972.130101008
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  • 6
    Electronic Resource
    Electronic Resource
    Equipment for hydrocarbon fermentations (1967)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 9 (1967), S. 77-89 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Although air-lift fermentors have been employed industrially and in the laboratory, little information has been published on the effects of design on performance. With respect to both liquid circulation and mass transfer, not only the actual rates but the efficiency in relation to power consumption is strongly influenced by lift height and diameter, submergence ratio, and air-flow rate. Relatively wide tubes, operating at high submergence ratios and rather low air-flow rates favor high efficiency. Since these conditions lead to rather low absolute values of circulation and mass-transfer rates, the microbial population which can be supported will also be rather small. Mass transfer can be increased by the insertion of an orifice some distance; above the air-inlet point and by suitable arrangement of the discharge from the air lift into the headspace of the fermentor.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260090109
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  • 7
    Electronic Resource
    Electronic Resource
    An investigation of the effects of the molecular weight distribution on the sensitivity of positive electron resists (1976)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 20 (1976), S. 2367-2375 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The molecular weight distribution of two grades of poly(methyl methacrylate) was determined, and the solubility of that polymer in methyl ethyl ketone-2-propanol mixtures was studied. The effects of the molecular weight distribution of the polymer and the strength of the developing solvent on electron resist sensitivity were studied experimentally and compared with a computer model of the electron exposure process. The molecular weight and the molecular weight distribution were found to have a significant effect on the sensitivity of poly(methyl methacrylate) as an electron resist. Increased sensitivity is predicted for higher molecular weight and narrower molecular weight distribution.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1976.070200907
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  • 8
    Electronic Resource
    Electronic Resource
    The curing reaction of an epoxide resin with 2-ethyl-4-methylimidazole, a calorimetric study of the kinetics of formation of epoxide-imidazole adducts (1975)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 176 (1975), S. 919-930 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Kinetik der Bildung von 1:1 und 2:1-Addukten (bezogen auf die Äquivalente Epoxid) von 2,3-Epoxipropyloxybenzol (2) und 2,2-Bis[p-(2,3-epoxypropyloxy)phenyl]-propan (1) mit 2-Äthyl-4-methylimidazol (3) wurde mit Hilfe der Differentialkalorimetrie (DSC) untersucht. Ein Vergleich isothermer und dynamischer Werte des 1:1-Systems 2/3 zeigte, daß die dynamische Geschwindigkeit nicht einfach mit der isothermen Geschwindigkeit gleichgesetzt werden kann, wohingegen die wahre dynamische Geschwindigkeitsgleichung dα/dt = (∂α/∂tT)+(∂α/∂Tt) (dT/dt), gute Übereinstimmung mit den isothermen Werten ergab. Die dynamischen DSC-Messungen deuten darauf hin, daß alle Reaktionen angenähert nach der 1. Ordnung verlaufen und ähnliche Werte für die Aktivierungsenergie (E = 81-93 kJ/mol) und den Frequenzfaktor (log A ≈ 9-10) ergeben. Die Ergebnisse stützen den Vorschlag, daß die Adduktbildung wahrscheinlich die erste Stufe der durch 3 katalysierten Harzvernetzung darstellt.
    Notes: The kinetics of formation of the 1:1 and 2:1 adducts of (in terms of equivalents of epoxide) 2,3-epoxypropyloxybenzene (2) and 2,2-bis[p-(2,3-epoxypropyloxy)phenyl]-propane (1) with 2-ethyl-4-methylimidazole (3) have been investigated by differential scanning calorimetry (DSC). A comparison of isothermal and dynamic data for the 1:1 system 2/3 showed that the dynamic rate cannot simply be equated to the isothermal rate, but the true dynamic rate equation, dα/dt = (∂α/∂tT)+(∂α/∂Tt) (dT/dt), gave good agreement with the isothermal data. The dynamic DSC measurements indicate that all of the reactions approximate to first order kinetics and have similar values for activation energy (E = 81-93 kJ/mol) and pre-exponential factor (log A ≈ 9-10). The results support the suggestion that adduct formation is likely to be the first stage of the resin curing reaction catalyzed by 3.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1975.021760408
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  • 9
    Electronic Resource
    Electronic Resource
    Lanthanide induced paramagnetic shifts - derivation of equilibrium constants and absolute shifts in Eu(DPM)3 systems (1972)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 4 (1972), S. 557-563 
    Details
    ISSN: 0030-4921
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Relationships between the magnitude of induced 1H NMR shifts and the equilibrium conditions in solutions containing lanthanide shift reagents are discussed and applied to the shifts induced in several organic molecules by Eu(DPM)3. Evidence that monoadduct formation is the predominant equilibrium in these solutions, and values of absolute shifts and equilibrium constants are reported. The results indicate that a contact mechanism makes the major contribution to the observed shifts in 4-methylpyridine. In the case of 2,4,6-trimethylpyridine the observed shifts are largely pseudocontact in origin.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1270040416
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  • 10
    Electronic Resource
    Electronic Resource
    On-line high-performance liquid chromatographic/gas chromatographic/tandem ion trap mass spectrometric determination of levamisole in milk (1992)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 21 (1992), S. 688-692 
    Details
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: On-line high-performance liquid chromatography/high-resolution gas chromatography/tandem mass spectrometry, performed on a quadrupole ion trap, has been used as a rapid method for the quantification of the anthelmintic drug levamisole in raw milk extracts following a simple extraction procedure. Detection at the 0.5 p.p.b. level and a linear response in the 10-0.5 p.p.b. range is demonstrated. Multiple-scan monitoring techniques have been used to acquire chemical ionization tandem mass spectra and electron impact mass spectra in a single chromatographic run.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200211211
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