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  • Chemistry  (15)
  • Wiley-Blackwell  (15)
  • 1965-1969  (15)
  • 1
    Electronic Resource
    Electronic Resource
    Observations in ternary liquid phase equilibria of n-propanol-benzene-ethylene glycol system (1968)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 14 (1968), S. 666-667 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690140428
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  • 2
    Electronic Resource
    Electronic Resource
    Studies on cation-exchange membrane. II. Sorption of electrolyte by rubber-based cation-exchange membrane from CNSL resin (1965)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 9 (1965), S. 941-946 
    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: Electrolyte sorption of a rubber-based cation-exchange membrane has been studied for two samples of different rubber contents. The sorption behavior is discussed in terms of the capillary volume between rubber and the resin, and an explanation is provided for the difference in the behavior of the two samples.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1965.070090312
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  • 3
    Electronic Resource
    Electronic Resource
    Reaktionen der Carbonylgruppe fluorierter Ketone (1966)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 78 (1966), S. 1008-1017 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Neuerdings wird der Chemie polyfluorierter Ketone große Beachtung geschenkt. Die fluorierten Ketone und ihre Imine reagieren an der Carbonyl- oder Iminogruppe in vielseitiger Weise. Insbesondere die elektronenziehenden Perfluoralkylgruppen verstärken die elektrophilen und schwächen die nucleophilen Eigenschaften der Carbonylgruppe. Außerdem erschweren Perfluoralkylgruppen die heterolytische Abspaltung der Hydroxygruppe von Anlagerungsprodukten indem sie die Stabilität der Carbonium-Ionen erniedrigen. Die verstärkte Elektrophilie der Carbonylgruppe und die erhöhte Stabilität der Anlagerungsprodukte führt nicht nur zur Änderung der Reaktionsfähigkeit in den charakteristischen Keton-Reaktionen, sondern auch zu zahlreichen neuen Reaktionen, die bei nicht fluorierten Ketonen nicht beobachtet werden. Perfluorierte Ketone geben damit die Möglichkeit, sehr verschiedenartige fluororganische Verbindungen zu synthetisieren.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19660782203
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  • 4
    Electronic Resource
    Electronic Resource
    Löslichkeit einiger III-V-Verbindungen in SchmelzenDiese Mitteilung wurde auf dem Symposium „Kristallisation aus Schmelzlösungen“ in Berlin, März 1965, vorgetragen. (1966)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 344 (1966), S. 323-328 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Several molten media are shown to be suitable as solvents for the crystal growth of InAs and, probably, other III-V-compounds. Some molten metals and compounds containing the corresponding group V element appear to be the best solvents for III-V compounds.Two liquid phases are formed, one being the crystallisation medium, by interaction of InAs with some metal halides. InAs crystals have been grown from Cd, Cd3As2, CdAs2 and, as single crystals, from CdI2.
    Notes: Es wurde die Möglichkeit gezeigt, eine Reihe geschmolzener Medien als Lösungsmittel für die Kristallisation des Indiumarsenids und anscheinend auch anderer III-V-Verbindungen anzuwenden.Die chemische Wechselwirkung von Indiumarsenid mit einigen Schwermetallhalogeniden unter Bildung von zwei flüssigen Schichten, deren eine das Kristallisationsmedium von Indiumarsenid ist, wurde nachgewiesen.Die III-V-Verbindungen lösen sich anscheinend am leichtesten in Schmelzflüssen einiger Metalle und Verbindungen, welche das entsprechende Element der Gruppe V enthalten.Es wurden Indiumarsenidkristalle aus CdJ2, Cd, Cd3As2 und CdAs2 gewonnen. Einige Kristalle, die aus Cadmiumjodid gezüchtet wurden, sind monokristallin.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19663440512
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  • 5
    Electronic Resource
    Electronic Resource
    On the extraction of chelate complexes of some actinide elementsA part of this work has been carried out in the Radiochemistry Department, Moscow State University. (1966)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 347 (1966), S. 327-332 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Neue Ergebnisse über die Extraktion von Th-, Pa-, U-, Np-Komplexen mit aromatisch substituierten Hydroxylaminen aus sauren und alkalischen Medien werden zusammenfassend beschrieben. Für die Extraktion jedes dieser Elemente werden genaue Bedingungen angegeben und die verschiedenartigen Komplexe hinsichtlich ihres Extraktionsverhaltens miteinander verglichen.
    Notes: An attempt is made to summarize some of the data obtained in our laboratory on the extraction behaviour of thorium. protactinium, uranium and neptunium complexes with certain substituted hydroxylamine derivatives from both acid and alkaline media. Conditions for the extraction of each element have been defined. A correlation of properties between the behaviour of the different complexes of the elements concerned has been also made.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19663470515
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  • 6
    Electronic Resource
    Electronic Resource
    Darstellung und einige Eigenschaften des wasserfreien Scandiumnitrats und seiner Solvate (1966)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 344 (1966), S. 76-85 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Several methods for the preparation of anhydrous scandium nitrate have been checked. Sc(NO3)3 is best obtained from the interaction of ScCl3 with liquid N2O4 and N2O5. The appropriate reaction conditions are described, also for preparing the solvates Sc(NO3)3 · n N2O4 (n = 1-2).These nitrates are crystalline and very hygroscopic, having a covalent-ionic metal to nitrate bond. Whereas the solvates are decomposed just above 20°C, the anhydrous nitrate is stable up to 105°C, giving then at increasing temperatures, the basic compounds Sc2O(NO3)4, ScONO3, and Sc4O5(NO3)2.
    Notes: Verschiedene Methoden für die Darstellung von wasserfreiem Scandiumnitrat wurden untersucht; zur Darstellung von Sc(NO3)3 eignet sich die Reaktion von ScCl3 mit flüssigem N2O4 und N2O5.Die Reaktionsbedingungen (Temperatur, Reaktionsdauer, Druck) wurden eingehend untersucht und festgelegt.Außer dem wasserfreien Sc(NO3)3 wurden die Solvate Sc(NO3)3 · n N2O4 (n = 1 — 2) dargestellt und untersucht.Die erhaltenen Nitrate sind kristalline, äußerst hygroskopische Verbindungen. Die Bindung zwischen Metall und NO3- ist eine kovalente Ionenbindung.Die Nitratsolvate zersetzen sich schon bei Über 20°C. Das wasserfreie Nitrat ist bis 105°C stabil. Bei Über 105°C zersetzt es sich stufenweise unter Bildung der basischen Verbindungen Sc2O(NO3)4, ScONO3 und Sc4O5(NO3)2.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19663440110
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  • 7
    Electronic Resource
    Electronic Resource
    Reactions of the Carbonyl Group in Fluorinated Ketones (1966)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 5 (1966), S. 947-956 
    Details
    ISSN: 0570-0833
    Keywords: Carbonyl compounds ; Fluorinated ketones ; Ketones ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The chemistry of polyfluorinated ketones has recently received a great deal of attention. A. Ya. Yakoubovich, Usp. Chim. 25, 3 (1956). H. P. Braendlin and E. T. McBee in: Advances in Fluorine Chemistry. Butterworths, London 1963, Vol. 3, p. 1. The review by Braendlin and McBee [2] does not deal only with perfluorinated ketones; moreover, though published in 1963, it is already outdated. The papers discussed in [1,2] will not be reviewed in the present article.. The carbonyl and imino groups of the fluorinated ketones and their imines react in many different ways. In particular, the electron-attracting perfluoroalkyl groups intensify the electrophilic properties and weaken the nucleophilic properties of the carbonyl group. The perfluoroalkyl group also hinders the heterolytic removal of the hydroxyl group from adducts by reducing the stability of the carbonium ion . The increased electrophilicity of the carbonyl group and the increased stability of the addition products leads not only to a change in reactivity in the characteristic ketone reactions, but also to numerous new reactions which are not observed with non-fluorinated ketones. Thus it is possible to synthesize a wide variety of fluoroorganic compounds from perfluorinated ketones.We have been concerned mainly with hexafluoroacetone, since in addition to being the most readily available and simplest perfluorinated ketone, this is also a typical representative of this class of compounds..
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.196609471
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  • 8
    Electronic Resource
    Electronic Resource
    Spiral and helical fractures (1968)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 8 (1968), S. 227-234 
    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: Spiral and helical fractures can be formed around high-modulus filaments and yarns which are embedded in brittle, amorphous, crosslinked resins. The phenomena are of particular interest because the stress field imposes a highly regular geometry upon the propagating fractures, and because the formation of the large surface area of the spiral fractures provides an efficient mechanism for dissipating strain energy. Development of the approach of the production of discrete geometrical voids with large surface area at predicatable sites may well provide resistance to impact in inherently brittle materials.
    Additional Material: 18 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760080308
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  • 9
    Electronic Resource
    Electronic Resource
    Metallic and plastic prosthetic devices as vascular wall substitutes: Biophysical criteria and methods for evaluationSupported in part by grants No. HE 03879, 07821, 07371, and 10795 from the National Heart Institute, National Institutes of Health, United States Public Service, Bethesda, Maryland. (1967)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Biomedical Materials Research 1 (1967), S. 83-101 
    Details
    ISSN: 0021-9304
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: Evidence is presented for the view that intravascular thrombosis proceeds via an electrochemical mechanism. It is strongly substantiated by some recent work on electrical wire thrombosis. These experiments show that thrombosis occurs on noble metal electrodes at potentials more positive than 0.3 v (NHE) but tends not to occur on electrodes more negative than this interfacial potential. Further, the same factors which prevent intravascular thrombosis are shown to prevent thrombosis on electrodes maintained at all potentials up to + 1.0v. Thus occurrence or prevention of thrombosis appears related to electrical and electrochemical properties of both blood and blood vessel wall. Methods for the determination of these properties are described and experimental results briefly presented. The studies have proved useful in establishing criteria for the selection of metal and plastic vascular substitutes. A combination of several electrochemical and biophysical criteria have been discovered which aid in the selection of nonthrombogenic vascular substitutes. Unfortunately not all metals which satisfy anti-thrombotic electrochemical criteria are suitable. Many, including magnesium, have cellular and proteolytic destructive characteristics. Certain metals and electrically treated Teflon tubes do not suffer from this defect and have proven useful in preliminary testing.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jbm.820010110
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  • 10
    Electronic Resource
    Electronic Resource
    Effect of varying electrolyte concentration on in vitro streaming potentials across canine aortae and carotid arteriesPaper presented at the Federation of American Societies for Experimental Biology Meeting (Abstract No. 1646), April 1967. (1967)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Biomedical Materials Research 1 (1967), S. 355-367 
    Details
    ISSN: 0021-9304
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: Knowledge of the characteristics of the blood-intima interface is important because it leads to information concerning (a) the normal antithrombotic mechanism (b) nature of interreactions between blood and intima (c) testing and selection of vascular wall substitutes which are antithrombotic and inhibit clotting. A technique for obtaining the electrical interfacial characteristics of blood vessel walls is by measuring streaming potentials. Experiments described in the present work are extensions of original in vivo streaming potential measurements. In vitro streaming potentials were measured across fresh canine aortae and carotid arteries using Krebs saline serum substitute, logarithmically varying both internal and external electrolyte concentrations. Positive streaming potentials were measured indicating that the blood vessel wall is negatively charged. Streaming potentials increased linearly with increasing flow rate, decreased with increasing internal electrolyte concentration, decreased with increasing external electrolyte concentration, and reversed, becoming positive, with aging of exteriorized artery. Thus the electrical characteristics of the blood vessel wall are dependent on an ionic balance between the blood vessel wall, flowing blood stream, and external environment. The information demonstrates the importance of electrochemical and physicochemical phenomena in the structure and function of the vascular interface and helps explain in vivo conditions conducive to or inhibitory of intravascular thrombosis.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jbm.820010306
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