p-Chlorostyrene was polymerized using a radical initiator, ?,??-azobis(isobutyronitrile). Polystyrene was chlorinated in the liquid phase using an SbCl3, catalyst combined with 10-trifluoroacetylphenothiazine. The chlorinated polymers were characterized spectroscopically and molecular weight measurements were carried out. The polymers were pyrolysed at 600°C, the pyrolysis products identified by means of gas chromatography/mass spectrometry and their relative percentages calculated. The differences in the products distributions gave helpful indications about the structure and the mechanism of degradation of the chlorinated polymers.
Thermal degradation of chlorinated polystyrenes
F Bertini;
1994
Abstract
p-Chlorostyrene was polymerized using a radical initiator, ?,??-azobis(isobutyronitrile). Polystyrene was chlorinated in the liquid phase using an SbCl3, catalyst combined with 10-trifluoroacetylphenothiazine. The chlorinated polymers were characterized spectroscopically and molecular weight measurements were carried out. The polymers were pyrolysed at 600°C, the pyrolysis products identified by means of gas chromatography/mass spectrometry and their relative percentages calculated. The differences in the products distributions gave helpful indications about the structure and the mechanism of degradation of the chlorinated polymers.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
