End groups in a low molecular weight fraction of a commercial suspension poly(vinylchloride) were analysed by means of 1H NMR and IR spectroscopy and by size exclusion chromatography. The following groups were identified and quantified: ethoxycarbonyloxy (1), 1,2‐dichloroethyl (2), trans‐ and cis‐4‐chloro‐2‐butenyl (3 and 4), 2‐chloroethyl (5), and 2‐chloroethylidene (6). The influence of these groups on the degradation at 180°C was determined.
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Jurriaan et al. (1983) studied this question.
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