An Extension of a Kinetic Theory of Polymer Crystallization Through the Exclusion of Negative Barriers

Abstract

The simplest version of the Lauritzen-Hoffman (LH) model of polymer crystallization which applies to infinitely long model polymer molecules crystallizing on an existing substrate of infinite width, is re-examined. The mathematical expressions for the model free energy barriers are observed to take on negative values at high supercooling. Since such negative barriers appear to be physically unrealizable for the crystallization process, the LH model is extended by imposing a mathematical constraint on the expressions for the barriers, to forbid them from ever being negative.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1991
Accession Number
ADA236999

Entities

People

  • Brian A. Newman
  • Jerry I. Scheinbeim
  • Louis Petrone

Organizations

  • Rutgers School of Engineering

Tags

DTIC Thesaurus Topics

  • Agreements
  • Chemical Reactions
  • Contrast
  • Crystallization
  • Electric Fields
  • Free Energy
  • Kinetic Theory
  • Macromolecules
  • Materials Science
  • Molecules
  • Numerical Integration
  • Phase
  • Polymers
  • Substrates
  • Supercooling
  • Transitions
  • United States

Readers

  • Analytical Mechanics
  • Calculus or Mathematical Analysis
  • Materials Science and Engineering.