Oxidation of polybutadiene. I. Rate of oxidation

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Abstract
The rate of oxidation of thin films of polybutadiene have been studied between 50 and 90°C. The films were prepared directly from latex by dipping, and thoroughly purified. The oxidation rates were found to go through an induction period, to accelerate rapidly to a maximum, and then to decrease to low values. The decrease in rate past the maximum may be due to consumption of polymer, or diffusion control of the rate. Test of the latter possibility showed the oxidation process to be diffusion limited at 90°, but not at 50°C. These results show that change of temperature leads here actually to a change in the mechanism of the oxidation process.

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