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  • 1
    Electronic Resource
    Electronic Resource
    Rheological properties of reactive polymer melts (1983)
    Springer
    Rheologica acta 22 (1983), S. 34-40 
    Details
    ISSN: 1435-1528
    Keywords: Reactive polymer melt ; rheometrical flow surface ; polyamide-6
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Abstract A new method of description of the rheological properties of reactive polymer melts in the form of “rheometrical flow surfaces” is presented. An equation of the rheometrical flow surface is proposed and the limiting cases of this equation are discussed. The experimental verification of the presented approach was carried out using data for polyamide-6.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01679827
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  • 2
    Electronic Resource
    Electronic Resource
    Determination of the weight-average molecular weight of polyamide-6 on the basis of melt viscosity (1983)
    Springer
    Rheologica acta 22 (1983), S. 186-196 
    Details
    ISSN: 1435-1528
    Keywords: Molecular weight ; polymer degradation ; melt viscosity ; rheometry ; polyamide-6
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Abstract A theory of a two-point rheometrical method of determination of the weight-average molecular weightM w of polyamide-6 is presented. The method is based on the measurement of the instantaneous values of zero-shear-rate viscosity of the degrading polymer melt, and a formula is derived which enables the calculation of the initial value ofM w (i.e. at zero-residence-time in molten state) of the investigated sample. The experimental verification of the method proves its applicability. The considerations carried out may be regarded as a first step towards developing a theory of an in-line rheometer for a continuous determination ofM w .
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01332371
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  • 3
    Electronic Resource
    Electronic Resource
    Rheological properties of reactive polymer melts. (1986)
    Springer
    Rheologica acta 25 (1986), S. 110-118 
    Details
    ISSN: 1435-1528
    Keywords: Reactive polymer melt ; rheometrical flow surface ; polyamide-6
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Abstract A new method for describing the rheological properties of reactive polymer melts, which was presented in an earlier paper, is developed in more detail. In particular, a detailed derivation of the equation of a first-order rheometrical flow surface is given and a procedure for determining parameters and functions occurring in this equation is proposed. The experimental verification of the presented approach was carried out using our data for polyamide-6.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01332130
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  • 4
    Electronic Resource
    Electronic Resource
    The principles of pipe-line design for molten poly(ethylene terephthalate) (1982)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 22 (1982), S. 141-146 
    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: The flow of molten poly(ethylene terephthalate) in pipes is discussed. The considerations made are based on the results of previous investigations by the authors, concerning the rheological behavior of the melt which exhibits thermal degradation. A procedure is proposed which enables the design of a pipe-line system for the distribution of molten, spinnable poly(ethylene terephthalate) in a fiber plant to be made.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760220302
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