Abstract
Poly-( p -phenylene sulphone) has been obtained by oxidation of linear poly-( p -phenylene sulphide) with hydrogen peroxide in acetic acid. Its structure was proved by IR spectroscopy, X-ray and elementary analysis and by chromatographic analysis of the volatile products of pyrolysis of the polymer. The main volatile products of pyrolysis of poly-( p -phenylene sulphone) are SO 2 , benzene, CO 2 and hydrogen. Rising temperature and isothermal TGA showed that poly-( p -phenylene sulphone) does not loose weight when heated in air up to 300°. The thermal characteristics of the original and oxidized polymers are compared.
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