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Modeling of polymer crystallization in a temperature gradient
Author(s) -
Piorkowska Ewa
Publication year - 2002
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.11276
Subject(s) - tacticity , crystallization , materials science , lamella (surface anatomy) , polymer , crystallization of polymers , temperature gradient , curvature , polypropylene , thermodynamics , polymer chemistry , composite material , physics , polymerization , mathematics , geometry , quantum mechanics
Abstract The crystallization of polymer films in a temperature gradient was simulated. The curvature of lamella growth directions observed experimentally was taken into account. The computer simulation permitted the visualization of the evolution of the spherulitic pattern and also the calculation of the conversion of the melt into spherulites. The mathematical model was also elaborated and allowed the prediction of the kinetics of conversion during the crystallization of polymers in the temperature gradient. A good agreement between the computer simulation results, the mathematical model predictions, and the experimental data for isotactic polypropylene crystallized in a temperature gradient was obtained. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 1351–1362, 2002