Studies on thermo-oxidative degradation of synthetic rubbers 1-4 and 1-2 polybutadienes

Abstract

Polybutadienes (PBs) were provided by Polymer Laboratories Ltd. The PB samples were synthesised using secbutyl lithium as an initiator. The structure of the PB samples was characterised using 13 C-NMR spectrometry. Average molecular weight was determined by Size Exclusion Chromatography (SEC) combined with a laser scattering detector. The result was summarised in Table 1 [6].