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  • Polymer and Materials Science  (307)
  • Wiley-Blackwell  (307)
  • 1955-1959  (307)
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  • Wiley-Blackwell  (307)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Nucleation and growth of crystallites in high polymers. Formation of spherulites (1955)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 16 (1955), S. 131-142 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Essential features of the crystallization of unoriented high polymers from the molten and supercooled liquid conditions are outlined to provide a background for a proposed structure and mechanism of growth of spherulites. Homogeneous and heterogeneous nucleation mechanisms of crystallite growth are discussed. Spherulites are recognized as crudely oriented spheroidal aggregates of crystallites and their attached amorphous regions. It is proposed that a spherulite originates from a single nucleus and that growth proceeds thence in a statistically radical fashion until all crystallizable domains are utilized or until growth is arrested due to increasing viscosity of the medium. It is assumed that crystallite growth occurs by lateral accretion of suitable oriented molecular segments and that nucleation proceeds from one crystallite to another by means of fine streamers of crystalline order (protofibrils) which may grow either by longitudinal extension along fringes or by lateral aggregation of very short segments. The predominant shapes of the crystallites are believed to determine the structure and optical properties of the spherulite. A roughly conical arrangement of crystallites around a spherulite radius is preferred to a helical one.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1955.120168204
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  • 2
    Electronic Resource
    Electronic Resource
    The preparation and polymerization of triallyl phosphite (1959)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 1 (1959), S. 376-378 
    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 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1959.070010321
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  • 3
    Electronic Resource
    Electronic Resource
    Korrosionsschutzverfahren bei LeichtöltankernVorgetragen am 7. 6. 1958 auf dem II. Kongreß der Europäischen Föderation für Korrosion in Frankfurt/M. (1959)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 10 (1959), S. 305-311 
    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: Protection against Corrosion in Light-Oil-ShipsRefined light oils cause bigger corrosion damages in tankers than crude oils. The authors present a survey of the protective methods for light oil tankers as developed by Ess Research amp; Engineering Co in cooperation with Esso Shipping Co. The protective methods tested are dealing with inhibitive films formed by water and oil soluble inhibitors, cathodic protection, protective coats of paints, desiccation and application of low alloyed steels. The most suitable method must be selected according to the range of application of the method and to the special conditions of the tanker. An economic treatment contains a comparison of the charges of the operation of ships protected by one of the methods mentioned above and of unprotected ones.
    Notes: Raffinierte Leichtöle verursachen in Schiffstanks stärkere Korrosionsschäden als Rohöle. Die Verfasser geben daher einen Überblick Über die von der Esso Research & Engineering Co. in Zusammenarbeit mit der Esso Shipping Co. entwickelten Korrosionsschutzverfahren bei Leichtöl-Tankschiffen. Die untersuchten Schutzmaßnahmen erstrecken sich auf Hemmstoffilme durch wasser- und öllösliche Inhibitoren, auf kathodischen Schutz, auf Schutzanstriche, auf Entfeuchtung und auf die Verwendung niedriglegierter Stäble. Das jeweils geeignetste Schutzverfahren muß unter Berücksichtigung der Grenzen, die den einzelnen Schutzsystemen gesetzt sind, und der Betriebsweise des Tankschiffes gewählt werden. In einer wirtschaftlichen Betrachtung werden schließlich die Kosten für den Betrieb des Schiffes ohne Korrosionsschutz denen für den Betrieb mit den verschiedenen Schutzsystemen (Anstrich, kathodischer Schutz, Verwendung niedriglegierter Stäble) gegenübergestellt.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19590100503
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  • 4
    Electronic Resource
    Electronic Resource
    Hydrodynamic properties of polyelectrolytes. Part IV. Viscosity of polyelectrolytes (1956)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 21 (1956), S. 495-503 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The different types of viscosity behavior which have been observed for polyelectrolytes are discussed and classified. Data are presented for sodium deoxyribonucleate and for sodium polyacrylate of different molecular sizes, and give information on the influence on the viscosity of the degree of polymerization and the flexibility of the molecule. The influence of the shear gradient is also considered. A qualitative interpretation is given based on the size of the polyions and their mutual interactions.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1956.120219913
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  • 5
    Electronic Resource
    Electronic Resource
    Crystallization kinetics and mechanical properties of polyethylenePresented in part at the American Chemical Society Meeting, San Francisco, April 16, 1958. (1959)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 36 (1959), S. 215-231 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The kinetics of crystallization of a branched polyethylene have been studied dilatometrically, spectroscopically, and microscopically at small degrees of supercooling (ca. 0-10°C.). In order to assess the extent to which results of different methods are in agreement with each other, apparent induction times and maximuin crystallization rates are compared. On the basis of these data, the results of different experimental techniques using different types of sample are in general agreement. However, there do exist small, but significant, differences which appear to be outside experimental error. The results are shown to be in essential agreement with present theories of nucleation and of crystallization. The observations are interpreted in terms of the processes occurring during crystallization. The relationship of dynamic mechanical properties to previous thermal histories is considered and a qualitative interpretation is presented.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1959.1203613018
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  • 6
    Electronic Resource
    Electronic Resource
    Chain transfer of styrene and p-chlorostyrene with benzaldehyde and p-chlorobenzaldehyde (1959)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 39 (1959), S. 357-361 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Thermal polymerization of styrene and of p-chlorostyrene at 100°C. in benzaldehyde and p-chlorobenzaldehyde has been investigated. Intrinsic viscosities of the resulting polymers and per cent conversion-time determinations have been made and are used to obtain DFn and second-order rate constants, respectively, as functions of monomer concentration for the four systems. Chain transfer constants for each monomer in the two solvents and Qtr and etr values for benzaldehyde and p-chlorobenzaldehyde are calculated and the results discussed.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1959.1203913528
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  • 7
    Electronic Resource
    Electronic Resource
    Interfacial polycondensation. III. PolyamidesPresented at the Symposium on Polyethers and Condensation Polymers at the 134th Meeting of the American Chemical Society, Chicago, Ill., September 1958. (1959)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 40 (1959), S. 329-336 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Experimental details are given for the interfacial polycondensation of thirteen polyamides having widely different structures. The method involves the fast, room-temperature reaction in a two-phase system between diamines and diacid chlorides. Aliphatic, alicyclic, and aromatic reactants, primary and secondary diamines, and many reactants containing other functional groups are all operable. The preparations illustrate a variety of procedural modifications and point up the simplicity, rapidity, and broad applicability of the method.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1959.1204013703
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  • 8
    Electronic Resource
    Electronic Resource
    Über hydrazide von Polyacrylsäuren. I. Mitt. Darstellung und Eigenschaften der Polyacrylsäurehydrazide (1957)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 22 (1957), S. 31-38 
    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: Preparation and properties of polyacrylic hydrazides have been described. Salification and reducing ability correspond to those of low molecular acid hydrazides. Polyacrylic hydrazides form with aldehydes and ketones macromolecular hydrazones and with nitrous acid explosible macromolecular azides.
    Notes: Es werden Darstellung und Eigenschaften von Polyacrylsäurehydraziden beschrieben. Salzbildung und Reaktionsfähigkeit entsprechen denen niedermolekularer Säurehydrazide. Polyacrylsäurehydrazide bilden mit Aldehyden und Ketonen makromolekulare Hydrazone, mit salpetriger Säure explosive, makromolekulare Azide.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1957.020220102
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  • 9
    Electronic Resource
    Electronic Resource
    Aromatic polyhydrocarbons. II. Chemical and physical properties of polymersPresented before the Gordon Conference on “Polymers,” A.A.A.S., New London, N. H., 1954. (1955)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 15 (1955), S. 19-29 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Hydrocarbon polymers prepared by the hot tube pyrolytic dehydrogenation of 1,4-dimethyl substituted aromatic hydrocarbons have been studied and characterized as to chemical and physical properties. Tough, chemically resistant products were obtained, but fabrication of these polyhydrocarbons was difficult due to the relative intractability of the polymers obtained.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1955.120157903
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  • 10
    Electronic Resource
    Electronic Resource
    Aromatic polyhydrocarbons. I. Monomer reactions and polymer preparationPresented before the Gordon Conference on “Polymers,” A.A.A.S., New London, N. H., 1954. (1955)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 15 (1955), S. 9-17 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Polyhydrocarbons were prepared by the dehydrogenation of 1,4-dimethyl substituted aromatic hydrocarbons and other related starting materials by several methods. A study was made of the intermediates formed and of their chemical reactions.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1955.120157902
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