Investigation of some vinyl polymers by pyrolysis—gas chromatography—mass spectrometry

Although much has been published on the thermal degradation behaviour and products of vinyl polymers, the possibilities of using gaschromatography—mass spectrometry in the investigation of pyrolysate composition have much to offer.Results for poly(vinyl chloride), poly(vinyl acetate), polystyrene and poly(α-methyl-styrene) homopolymers and styrene—acrylonitrile copolymer obtained by pyrolysis—gas chromatography—mass spectrometry are presented. Numerous additional fragments not previously specified have been determined. The possible mechanisms of their origin as regards the polymer chain structure are discussed.