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The Rate of Crystallization of Linear Polymers with Chain Folding

  • John D. Hoffman
  • G. Thomas Davis
  • John I. LauritzenJr.

Abstract

Under a variety of circumstances commonly encountered in practice linear macromolecules crystallize into the form of thin platelets whose large upper and lower surfaces consist of an array of molecular folds. We refer to these as “chain-folded crystals” or “chain-folded lamellae,” the latter term usually being reserved for folded structures in polymers crystallized from the melt. The theory of the rate of formation of these platelets will be outlined, and the prediction and origin of the thin dimension given. The thin dimension of the crystal platelets is determined by kinetic factors, and the elucidation of the kinetics of growth is therefore of importance in polymer morphology on both a molecular and a macroscopic scale.

Keywords

Surface Free Energy Linear Polymer Homogeneous Nucleation Bulk Polymer Polymer Crystal 
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

© Bell Telephone Laboratories, Incorporated 1976

Authors and Affiliations

  • John D. Hoffman
    • 1
  • G. Thomas Davis
    • 1
  • John I. LauritzenJr.
    • 1
  1. 1.Institute for Materials ResearchNational Bureau of StandardsUSA

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