Advertisement

Use of Microcalorimetry for Determination of Order in Polymers

  • Samuel H. Maron
  • Frank Filisko
Conference paper

Abstract

Knowledge of the degree of order in polymers is of great importance in understanding the morphology and the physical properties of such materials. Such order has been determined heretofore by x-rays, density, specific heat, and infrared measurements, but such methods are either inapplicable or inaccurate at low degrees of order. However, Maron and Daniels (1) have shown recently that both high and low degrees of order in polymers can be determined to a high degree of accuracy from a combination of heat of solution and heat of dilution measurements. For application of this method the instrument most suitable is the Calvet microcalorimeter, particularly when modified in the manner to be described. The purpose of this talk is to describe this calorimeter and the modifications made in it, and to show how the data obtained with its aid can be used to ascertain polymer order.

Keywords

Lower Volume Fraction Benzene Solution Yield Line Calculated Heat Solution Data 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    C.A. Daniels, M.S. Thesis, Case Western Reserve University, 1967.Google Scholar
  2. 2.
    S. H. Maron, J. Polymer Sci., 38, 329–342 (1959).CrossRefGoogle Scholar
  3. 1.
    C. Watters, H. Daoust, and M. Rinfret, Can. J. Chem., 38, 1087 (1960).CrossRefGoogle Scholar
  4. 4.
    M. A. Kabayama and H. Daoust, J. Phys. Chem., 62, 1127 (1958).CrossRefGoogle Scholar
  5. 5.
    J. Brandrup and E. H. Immergut, “Polymer Handbook,” Interscience Publishers (1966).Google Scholar
  6. 6.
    E. Calvet and H. Prat, Recent Progress in Microcalorimetry, Pergamon Press, Oxford, England (1963).Google Scholar

Copyright information

© Plenum Press 1968

Authors and Affiliations

  • Samuel H. Maron
    • 1
  • Frank Filisko
    • 1
  1. 1.Division of Polymer ScienceCase Western Reserve University, University CircleClevelandUSA

Personalised recommendations