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Nonisothermal crystallization kinetics of nucleated poly(ethylene terephthalate)
Author(s) -
Deshpande V. D.,
Jape Sandeep
Publication year - 2008
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.29141
Subject(s) - crystallization , activation energy , materials science , kinetics , fourier transform infrared spectroscopy , polymer chemistry , ethylene , nucleation , chemical engineering , poly ethylene , chemistry , organic chemistry , catalysis , physics , quantum mechanics , engineering
Abstract Studies of the nonisothermal crystallization kinetics of poly(ethylene terephthalate) nucleated with anhydrous sodium acetate were carried out. The chemical nucleating effect was investigated and confirmed with Fourier transform infrared and intrinsic viscosity measurements. The Avrami, Ozawa, and Liu models were used to describe the crystallization process. The rates of crystallization, which initially increased, decreased at higher loadings of the additive. The activation energy, calculated with Kissinger's method, was lower for nucleated samples. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009