Kinetics of Ozone Oxidation of Oriented Polypropylene and High-Density Polyethylene

被引:1
|
作者
Karpova, S. G. [1 ]
Popov, A. A. [1 ]
机构
[1] Russian Acad Sci, Emanuel Inst Biochem Phys, Moscow 119991, Russia
关键词
D O I
10.1134/S1990793108060122
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
The interrelation between the rate of ozone oxidation of oriented samples of PP and HDPE and the structural processes in the region of relaxation transitions at 50-70 degrees C in PP and 40-60 degrees C in HDPE was found. Within the studied temperature range, the annealing results in significant structural changes accompanied by the emergence of breaks in the temperature dependence of the rate of ozone oxidation. The chemical and temperature preannealing decreases the oxidation rate. After the chemical annealing at 96 degrees C, the Arrhenius temperature dependence of the oxidation rate was observed.
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页码:940 / 946
页数:7
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