Depression of Major Transition Temperatures of Poly(ethyleneterephthalate) Fibre by Some Model Compounds

摘要

The effect of five flame retardant compounds on the depression of glass-transition temperature (Tg), cold crystallization temperature (Tc), and crystalline melting temperature (Tm) was examined by thermal analysis. The depression of Tg by four of the compounds was linear. The depression of Tg by the fifth compound gave a plateau-type minimum which could be due to #x2018;super-saturation#x2019; theory or a modification of Kovacs' theory.5