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Estimation of shelf life of unstabilized polyolefins from thermal oxidation data
Author(s) -
Reich Leo,
Stivala S. S.
Publication year - 1973
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.1973.070170930
Subject(s) - wright , library science , polymer science , chemistry , operations research , computer science , art history , engineering , art
: Utilizing carbonyl formation data previously obtained during the thermal oxidation of unstabilized atactic polypropylene, unstabilized isotactic polypropylene and unstabilized atactic polybutene-1 along with a semi-empirical expression, it was possible to extrapolate and obtain arbitrary induction times at relatively low temperatures. Values of induction times thus obtained were correlated with changes in physical properties, i.e., intrinsic viscosity and the product of ultimate elongation and ultimate tensile strength (a product which is often referred to as the impact index).