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  • Chemistry  (2)
  • 1975-1979  (2)
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Year
  • 1
    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 extension of the relation between the dynamic viscoelastic parameters (“E” and tan δ) and diffusion coefficient (D) to modified acrylic blend fibers indicates that the dependence of dye diffusion on polymer chain mobility is a general phenomenon not limited to a single component system. The relationship of D to mechanical properties permits one to “tailor” fibers with good mechanical properties while maintaining adequate dye-diffusion behavior.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 20 (1976), S. 3033-3055 
    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: An apparatus for measurement of dynamic mechanical properties of a polymer immersed in a liquid medium has been developed in this laboratory. The apparatus is based upon modification of the Vibron Viscoelastometer DDV-II. The viscoelastic properties of fibers immersed in liquids are of primary concern in textile processing. The dynamic mechanical properties of poly-(ethylene terephthalate) fibers immersed in dyeing media, such as water and tetrachloroethylene, were measured. The glass transition temperatures of polyester immersed in these dyeing media were significantly depressed from the dry glass transition temperature. A relationship between viscoelastic properties above the glass transition temperature of polyester fibers in tetrachloroethylene and the rate of disperse dyeing from tetrachloroethylene is proposed. The relationship is interpreted in terms of dye diffusion controlled by segmental mobility of amorphous regions of the polymer.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    Signatur Availability
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