Abstract
2137 (2) It is shown that the thermal-oxidative decomposition of both types of PFA is an apparent first-order reaction with respect to oxygen over a wide range of oxygen concentrations (up to 809/0 [O2] ). (3) The suggestion is made that the polymeric active centres are of two types. (4) It is noted that there is a relationship between the degree of oxidative degradation and the extent of random rupture of the polymer chain for the acetylated polymer for any method of initiation of degradation. (5) Differences were found in the rates of formation of formic acid during the degradation of PFA with hydroxyl and acetyl end groups, in complete agreement with theoretical concepts of the mechallism of formation of this product.
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