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  • Wiley-Blackwell  (63)
  • Elsevier  (39)
  • Wien : Geologische Bundesanstalt
  • 1965-1969  (98)
  • 1930-1934
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Transitional phenomena in α-polyolefin melts (1965)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 5 (1965), S. 15-21 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    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: A first order transition was observed in the temperature range of about 210°C by dilatometric studies on both isotactic and atactic polypropylene and for isotactic poly (butene-1) and poly (pentene-1). No such transition was observed for polyethylene. It was found that the transition is not due to the measurements per se, to polymer treatment, to catalyst residues, or to polymer degradation. It is suggested that the transition could be due to the disappearance of liquid crystals.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760050104
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  • 2
    Electronic Resource
    Electronic Resource
    Heterogeneous nucleating agents for polypropylene crystallization (1967)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 11 (1967), S. 673-685 
    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: A model nucleating agent for polypropylene crystallization is described. A series of compounds consisting mainly of organocarboxylic acid salts is evaluated as heterogeneous nucleating agent for polypropylene crystallization by measuring their effect upon the polymer supercooling. Sodium benzoate and basic aluminium dibenzoate were among the best nucleating agents found. The nucleating abilities of the various compounds are discussed in terms of their structural features.
    Additional Material: 7 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1967.070110505
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  • 3
    Electronic Resource
    Electronic Resource
    DTA study of heterogeneous nucleation of crystallization in polypropylenePresented before the Division of Polymer Chemistry, 148th National American Chemical Society Meeting, Chicago, Illinois, September 1964. (1965)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 9 (1965), S. 2131-2142 
    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 effect of cooling, nucleation, and spherulitic growth rates on the properties of polypropylene is discussed briefly. A differential thermal analysis technique is described for evaluating the relative extent of heterogeneous nucleation that occurs in a particular polypropylene composition. The method is based upon a nucleating agent's ability to reduce the relatively large amount of supercooling that occurs upon crystallization of polypropylene. Compounds are shown to vary widely in their effectiveness as heterogeneous nucleating agents in polypropylene. The relationships between the degree of supercooling of a particular polypropylene composition and its relative clarity, tensile properties, density, and morphology are shown.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1965.070090610
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of molecular weight upon the heterogeneous nucleation of crystallization in polypropylene (1966)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-2: Polymer Physics 4 (1966), S. 631-638 
    Details
    ISSN: 0449-2978
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The effect of basic aluminium dibenzoate upon the supercooling of polypropylene fractions of molecular weight 9.2 × 103-1.25 × 106 was determined by differential thermal analysis. The response to heterogeneous nucleation within the precision of the method used appears to be only slightly dependent, if at all, upon the molecular weight of the polymer.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1966.160040407
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  • 5
    Electronic Resource
    Electronic Resource
    The role of bacteria in copper mining operations (1967)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 9 (1967), S. 487-497 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The results of our survey of several mining operations have shown in every instance typical T. ferrooxidans bacteria to be present in the leaching solutions. The numbers of bacteria found are in general what, one would expect considering the chemical reactions occurring in these processes. A major difficulty is encountered when one considers the complex and unknown series of events which occur, as the bacteria-bearing, acidic, ferric-ion solution penetrates the massive ore dumps. Laboratory studies show microbial activity to be the major cause of rapid solubilization of copper sulfide ores. Field studies suggest that microbial activity cannot explain all observations in a typical leaching operation.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260090405
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  • 6
    Electronic Resource
    Electronic Resource
    Die Darstellung komplexer Bromderivate des 5-wertigen Wolframs (1931)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 196 (1931), S. 85-88 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Es wurde ein Weg zur Darstellung der den bekannten Chlorowolframiten analogen Bromowolframite gezeigt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19311960112
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  • 7
    Electronic Resource
    Electronic Resource
    Energetische Betrachtungen über die Valenzfelder der Ammoniakate (1932)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 206 (1932), S. 416-424 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19322060410
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  • 8
    Electronic Resource
    Electronic Resource
    Fulminato-Komplexe von Quecksilber(II) (1966)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 347 (1966), S. 304-309 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: [Hg(CNO)4]2- is formed by treating mercury fulminate with aqueous alkali fulminate solutions and is isolated as colourless, stable tetraphenylarsonium salt, [As(C6H5)4]2 [Hg(CNO)4]. Hg(CNO)2, AgCNO and CuCNO react with tertiary phosphines to yield non-explosive compounds of the type Hg(CNO)2L2. Ag(CNO)L2 and Cu(CNO)L2 (L = P(C6H5)3, P(C6H11)3). The infrared spectra of the complexes are discussed.
    Notes: Tetrafulminatomercurat(II) bildet sich bei der Umsetzung von Knallquecksilber mit wäßrigen Alkalifulminat-Lösungen und läßt sich als farbloses, berührungsstabiles Tetraphenylarsoniumsalz [As(C6H5)4]2[Hg(CNO)4] isolieren. Hg(CNO)2, sowie Silber- und Kupferfulminat reagieren mit tertiären Phosphinen und α′,β′-Bipyridyl unter Bildung der nicht explosiven Verbindungen des Typs Hg(CNO)2L2, Ag(CNO)L2, Cu(CNO)L2 (L = P(C6H5)3, P(C6H11)3, 1/2 α′,β′-Bipyridyl). Die IR-Spektren der Verbindungen werden diskutiert.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19663470512
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  • 9
    Electronic Resource
    Electronic Resource
    Phenylzinn-, -blei- und -thalliumtricyanomethanid-Verbindungen (1967)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 354 (1967), S. 69-73 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The preparation and infrared spectra of triphenyl-tin and -lead tricyanomethanide, (C6H5)3MNCC(CN)2, and of diphenylthallium tricyanomethanide, (C6H5)2TlNCC(CN)2, are reported.
    Notes: Die Darstellung und IR-Spektren von Triphenylzinn- und -bleitricyanomethanid, (C6H5)3MNCC(CN)2 (M = Sn, Pb), sowie von Diphenylthalliumtricyanomethanid, (C6H5)2TlNCC(CN)2, werden beschrieben.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19673540114
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  • 10
    Electronic Resource
    Electronic Resource
    Bis(triphenylzinn-und-blei)hyponitrit [(C6H5)3M]2N2O2 (M = Sn, Pb) (1968)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 357 (1968), S. 134-138 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Triphenyltin and lead hyponitrite are prepared from the triphenylmetal iodides and Ag2N2O2. The thermal decomposition and the infrared spectra of the compounds have been studied.
    Notes: Triphenylzinn- und -bleihyponitrit werden durch Umsetzung der Triphenylmetalljodide (C6H5)3MJ mit Ag2N2O2 erhalten. Die thermische Zersetzung sowie die IR-Spektren der Verbindungen werden untersucht.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19683570304
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