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A Multiphase Model Describing Polymer Crystallization and Melting

  • Gert Strobl
Part of the Lecture Notes in Physics book series (LNP, volume 714)

Abstract

The results of temperature dependent small angle X-ray scattering experiments on a variety of crystallizing polymers contradict conventional wisdom and suggest that polymer crystallization generally uses a route which includes a passage via a mesomorphic phase. We construct a thermodynamic scheme dealing with the transitions between melt, mesomorphic layers and lamellar crystallites, assuming for the latter ones that they exist both in an initial ‘native’ and a final ‘stabilized’ form. Application of the scheme in a quantitative evaluation of small angle X-ray scattering and calorimetric results yields the equilibrium transition temperatures between the various phases, latent heats of transition and surface free energies. As an example, the data obtained for s-polypropylene are given. Here, the mesomorphic phase has thermodynamic properties which place this state intermediate between melt and crystals.

Keywords

Surface Free Energy Isothermal Crystallization Crystal Thickness Polymer Crystallization Melting Line 
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.

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Copyright information

© Springer 2007

Authors and Affiliations

  • Gert Strobl
    • 1
  1. 1.Physikalisches InstitutAlbert-Ludwigs-Universität FreiburgFreiburgGermany

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