Differential scanning calorimetry (DSC) DSC studies of all foamed and unfoamed injection moulded samples were performed with a TA Instrument (DSC Q-200) analyzer at 10°C/min scan rate and the values from the 1st heating cycle were reported. The glass transition temperature (Tg), cold crystallization peak temperature (Tcc), melting temperature (Tm), and enthalpy of melting (!Hm), were analyzed for all the samples using Universal Analysis software from TA Instruments. Percentage crystallinities of all the samples were calculated using Equation