G. Ellis et al., THERMAL-STABILITY AND DEGRADATION MECHANISM FOR 2 MAIN-CHAIN LIQUID-CRYSTAL POLYESTERS - A TG-MS STUDY, JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 52(3), 1998, pp. 683-695
The thermal stabilities of two thermotropic liquid crystal polyesters
were analysed by means of thermogravimetric analysis (TG), as a functi
on, of the chemical structure of the aliphatic spacer between the arom
atic-triad mesogenic units. TG was combined with mass spectrometry to
confirm that the degradation mechanism previously observed in a Fourie
r transform infrared study of the degrading polymers follows a beta-ci
s-elimination process.