Premium
Thermal oxidation of metallocene‐catalyzed poly(ethylene octene) by a rheological method
Author(s) -
Yang Kai,
Yu Wei,
Zhou Chixing
Publication year - 2007
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.26281
Subject(s) - thermal oxidation , ethylene , octene , metallocene , 1 octene , materials science , polymer chemistry , catalysis , rheology , fourier transform infrared spectroscopy , chemical engineering , chemistry , organic chemistry , polymerization , polymer , composite material , oxide , engineering
The thermal oxidation of a metallocene‐catalyzed poly(ethylene octene) (POE) melt was studied by a dynamic rheological method. Furthermore, to prove the effect of oxygen on the thermal oxidation of POE, cyclic samples, which consisted of virgin POE in the outer circle and POE with antioxidant inside, were made. The results showed that a thermal‐oxidation‐induced crosslinking reaction occurred in the POE melt at a high temperature. The amount of the antioxidant determined the thermal oxidation of POE when the antioxidant was added, and the diffusion of oxygen controlled the thermal oxidation of POE without the antioxidant. In addition, Fourier transform infrared and gel content characterization confirmed that the crosslinking occurred and that carbonyl groups formed in the reaction. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007