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  • Polymer and Materials Science  (5)
  • 1960-1964  (5)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Crystal structure and morphology of polyacrylonitrile in dilute solution (1962)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 62 (1962), S. 145-151 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: It has been possible to crystallize polyacrylonitrile from dilute solutions of propylene carbonate in the form of thin platelets. These platelets are ellipsoidal in shape and approximately 100 A. thick. Electron diffraction shows that the platelets are essential single crystals and the polymer axis is nearly perpendicular to the plane of the platelet. Five separate reflections were measured and indexed. The spacings calculated for these reflections agree with previously reported x-ray values obtained from drawn fiber. However, the present electron diffraction data require a different indexing of the reflections resulting in revised unit cell dimensions.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1962.1206217310
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  • 2
    Electronic Resource
    Electronic Resource
    Crystalline morphology of polyacrylonitrileContribution No. 66 from the Chemstrand Research Center. (1960)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 43 (1960), S. 572-574 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1960.1204314229
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  • 3
    Electronic Resource
    Electronic Resource
    Morphology and crystal growth rate of polyethylene crystalline complexes (1962)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 57 (1962), S. 589-608 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: An investigation of the morphology of crystallization of fractionated linear polyethylene has shown that single crystal platelets may be obtained from dilute xylene solutions only in a limited region of temperature. The variation of this temperature region with molecular weight is greater than would be expected from the theoretical variation in equilibrium melting temperature. Uniformity of the crystallization conditions was sufficient to permit the measurement of size and thickness of the crystals as a function of both time and temperature. It was shown that the change in platelet thickness with temperature cannot be accounted from by the kinetics of nucleation with the assumption that the thickness is essentially equal to the critical nucleus dimension. The crystal growth rate data show that growth occurs by a nucleation process but the data are not compatible with the assumption that nucleation occurs through the formation of a homogeneous monomolecular layer on the growth surface. Evidence is presented to show that crystallization habit is dependent not only on the degree of supercooling but is also a function of some other factor that acts as a resistance or impedance to crystallization.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1962.1205716546
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  • 4
    Electronic Resource
    Electronic Resource
    Morphology and electron diffraction of nylon-66 single crystals (1964)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 71 (1964), S. 204-206 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1964.020710117
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  • 5
    Electronic Resource
    Electronic Resource
    On transformations in isotactic polybutene-1 (1964)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Letters 2 (1964), S. 519-521 
    Details
    ISSN: 0449-2986
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1964.110020509
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