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  • Polymer and Materials Science  (47)
  • 1990-1994
  • 1965-1969  (47)
  • 1940-1944
  • 1965  (47)
Collection
Keywords
Publisher
Years
  • 1990-1994
  • 1965-1969  (47)
  • 1940-1944
Year
  • 1
    Electronic Resource
    Electronic Resource
    Permanently amorphous cellulose (1965)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 9 (1965), S. 2634-2636 
    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
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1965.070090725
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  • 2
    Electronic Resource
    Electronic Resource
    Properties of semicrystalline polyolefins. II. Copolymers of 3-methyl-1-pentene and 4-methyl-1-pentene (1965)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 9 (1965), S. 933-940 
    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 study of the copolymerization of 3-methyl-1-pentene (3-MP) and 4-methyl-1-pentene (4-MP) showed that the poly-4-MP crystal lattice is capable of incorporating large quantities of 3-MP without a sharp lowering of melting point or adverse effect on physical and mechanical properties. The reactivity ratio of the two monomers in copolymerization are r(4-MP) = 6.2 ± 0.2 and r(3-MP) = 0.1 ± 0.1. As a result, mixed feeds containing up to 80% 3-MP produce copolymers composed primarily of repeating 4-MP units, with a random insertion of 3-MP monomer units. Calculations indicate that in a copolymer containing 37% 3-MP, the probability of finding a sequence of 2 units of 3-MP is only a little better than 5%. This copolymer shows a somewhat increased resistance to deformation under load than homopoly 4-MP. Its crystalline melting point is 248°C.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1965.070090311
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  • 3
    Electronic Resource
    Electronic Resource
    Determination of the reactivity ratios for the copolymerization of vinyl acetate and vinyl chloride using nuclear magnetic resonance spectroscopy (1965)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Letters 3 (1965), S. 897-900 
    Details
    ISSN: 0449-2986
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1965.110031102
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  • 4
    Electronic Resource
    Electronic Resource
    Conformation of polyriboadenylic acid: pH and temperature dependenceSupported in part by Public Health Service Research Grant GM 10840, by an unrestricted grant from Research Corporation, and by the U. S. Atomic Energy Commission. (1965)
    New York : Wiley-Blackwell
    Biopolymers 3 (1965), S. 121-133 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Evidence is presented that polyriboadenylic acid (Poly A) is a single-strand flexible helix of stacked bases at neutral pH and room temperature. As the temperature is raised the stacking decreases, but there is still perceptible order at 80°C. The thermal transition from the double-strand helix (which exists at low pH) to the single-strand helix has been followed by optical rotatory dispersion, optical absorption, and viscosity measurements.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.360030203
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  • 5
    Electronic Resource
    Electronic Resource
    Effects of thermal exposure on the physicochemical properties of polyamidesPresented at the 148th Meeting of the American Chemical Society, Chicago, Illinois, August 31, 1964. (1965)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 9 (1965), S. 2855-2877 
    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: Nylon 66 and nylon 6 yarns were exposed in air, nitrogen, and vacuum to temperatures form 136 to 215°C. for periods from 5 min. to 17.5 hr. The moisture absorption of both fibers is reduced by the exposure independently of the presence of oxygen or of antioxidant. This is ascribed to secondary crystallization. Simultaneously, the electrical resistivity is increased. The breaking strength is reduced by exposure in the presence of oxygen unless the polymer contains antioxidant. The extent of oxidative cleavage was measured by the viscosity-average molecular weight M̄v of nylon 66. Simultaneously, a reduction of the amine endgroup content was observed. It occurs only in the presence of oxygen and approaches a limit indicating that some amine groups are not subject to elimination. If oxygen is absent or the polymer protected by antioxidant, the M̄v increases. Sorption of hydrochloric acid is reduced by the exposure. Only 80% of the amine groups in the unexposed and 55% in the exposed nylon participate in acid binding at pH 2.5. The rate constants of cleavage as manifested by M̄v and of the process leading to disappearance of amine groups were determined for nylon 66. The activation energies were calculated 40 and 36 Kcal./mole, respectively.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1965.070090820
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  • 6
    Electronic Resource
    Electronic Resource
    Überblick über das Gebiet der Spannungsrißkorrosion. I. Die Bedeutung der Spannungsrißkorrosion in der PraxisNach einer früher vorgelegten Ausarbeitung, von der ein Teil zu einem Vortrag bei der ACHEMA 1964 verwendet wurde. Teil II dieser Übersicht vgl. dieses Heft, S. 288 (1965)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 16 (1965), S. 277-288 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: A synospis of the sphere of stress cracking corrosion. Part I. The importance of stress corrosion cracking in industrial practiceIn the present First Part, the importance of stress corrosion cracking phenomena is discussed. In a historic survey, a description is given of the damage caused by stress corrosion cracking to metallic materials in greatly variegated technical spheres. The cases of damage or less grave in nature but also, in a number of cases, certain categories of damage which occured unexpectedly in the course of technical development, and which had to be overcome first before technical progress could be resumed. Problems of stress corrosion cracking are also highly topical in the sphere of the pioneering efforts characteristic for our times which, e.g., call for the application of high-strength steels.The second will deal with the character of stress corrosion cracking in the light of the latest knowledge.
    Notes: Im 1. Teil wird die Bedeutung der Spannungsrißkorrosions-Erscheinungen aufgezeigt. Es wird mit geschichtlichem Einschlag beschrieben, wie im Laufe einiger Jahrzehnte in sehr verschiedenen technischen Bereichen Spannungsrißkorrosion metallischer Werkstoffe Schäden verursachte. Es handelt sich dabei nicht nur um mehr oder weniger schwerwiegende Einzelfälle, sondern mehrfach um Gruppen von überraschend im Zuge der technischen Entwicklung aufgetretenen Schäden, wobei der technische Fortschritt erst nach deren Beherrschung gesichert war. Auch im Gebiet der unsere Zeit kennzeichnenden technischen Pionierleistungen, die z. B. den Einsatz hochfester Stähle erforderlich machen, sind die Probleme der SRK sehr aktuell.Im 2. Teil wird auf das Wesen der Spannungsrißkorrosion nach dem neuesten Stand der Erkenntnis eingegangen.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19650160402
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  • 7
    Electronic Resource
    Electronic Resource
    Überblick über das Gebiet der Spannungsrißkorrosion. II. Betrachtungen grundsätzlicher Art zur Frage der Spannungsrißkorrosion (1965)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 16 (1965), S. 288-309 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: A synopsis of the sphere of stress cracking corrosion. Part II. Consideration of a fundamental nature on the problem of stress corrosion crackingFollowing a critical survey of the term “stress corrosion cracking” the phenomenology of this type of corrosion is characterized in order to distinguish it from similar phenomena as e.g. damage caused by diffusing hydrogen, attack by high pressure hydrogen at elevated temperature and cracking due to soldering. The author further delinetaes the conditions necessary for the formation of stress corrosion cracking, and shows the individual steps of this deteriovation process.Some points are emphasized from among the comprehensive group of problems associated with stress corrosion cracking; these points illustrate the mechanism of stress corrosion cracking as well as the vast number of factors influencing this type of corrosion. The transcrystalline form is regarded as a particularly characteristic features of stress corrosion cracking. The latest state of attempts at elucidating these phenomena is discussed, with particular reference to studies on austenitic steels. It is shown that the cooperation of physical effects is probable; in this context particular reference is made to the stress corrosion cracking of plastic polymers.On the basis of the criterion involving the selection of spots susceptible to stress corrosion cracking in the material and specfic aggressive media the question is raised where there are open gaps in the theoretical explanation. Finally the necessity of further research is pointed out and an appeal is made to all those concerned to make available and collect the results of practical experience in a more systematic way than before.
    Notes: Nach einer kritischen Betrachtung der Begriffsbestimmung „Spannungsrißkorrosion“ wird die Phänomenologie derselben gekennzeichnet unter Abgrenzung gegen ähnliche Erscheinungen wie z.B. Schädigung durch diffundierenden Wasserstoff, Druckwasserstoffangriff bei erhöhter Temperatur und Lotbruch.Es werden die Voraussetzungen für das Eintreten der Spannungsrißkorrosion aufgezeigt und die verschiedenen Stufen des Schädigungsvorganges gekennzeichnet.Aus dem umfangreichen Problemkreis der Spannungsrißkorrosion werden einige Punkte herausgestellt, welche sowohl den Mechanismus der Spannungsrißkorrosion illustrieren als auch die große Zahl der Einflußfaktoren aufzeigen. Die transkristalline Form wird als besonders kennzeichnend für das Wesen der Spannungsrißkorrosion angesehen. Der neueste Stand der Ansätze zur Erklärung der Vorgänge wird insbesondere in Anknüpfung an Studien an austenitischen Stählen besprochen. Die Mitwirkung von physikalischen Effekten wird wahrscheinlich gemacht unter besonderer Erwähnung der Spannungsrißkorrosion bei hochploymeren Kunststoffen.An Hand des Auswahlprinzips hinsichtlich anfälliger Stellen im Werkstoff und spezifischer Angriffsmittel wird die Frage nach den Lücken der theoretischen Klarstellung aufgeworfen. Schließlich wird auf die Notwendigkeit weiterer Forschungen hingewiesen und die Praxis aufgefordert, systematischer als bisher die Erfahrungen zusammenzutragen.
    Additional Material: 31 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19650160403
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  • 8
    Electronic Resource
    Electronic Resource
    Dechema-Werkstofftabelle. Physikalische Eigenschaften der Werkstoffe (1965)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 16 (1965), S. 738-738 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19650160823
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  • 9
    Electronic Resource
    Electronic Resource
    Grundlagen des Festigkeitsverhaltens von Metallen. Herausgegeben von G. E. R. Schulze, 231 S., zahlr. Abb., DM (Ost) 44.-. Akademie-Verlag Berlin 1965 (1965)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 16 (1965), S. 922-922 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19650161017
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  • 10
    Electronic Resource
    Electronic Resource
    Die Werkzeugstähle. Unlegierte und legierte Werkzeugstähle, ihre Zusammensetzung, Eigenschaften, Herstellung und Behandlung, mit Anhang über „Schneidmetalle“. E. Heinrich. 2. neugestaltete Auflage, Springer-Verlag Berlin/Göttingen/Heidelberg 1964. 55S., 36 Abb. und 26Tab. (Reihe Werkstattbücher;. f. Betriebsfachleute, herausgegeben v. H. Haake, Heft 50, Preis geh. DM 4,50.) (1965)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 16 (1965), S. 178-178 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19650160216
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