Abstract
The effect of uniaxially drawing amorphous and crystalline blends of poly(ether ether ketone) (PEEK) and poly(ether imide) (PEI) on the glass-transition temperature (T g ), PEEK crystallization and the respective orientation of PEEK and PEI in the drawn blends was determined. Through solid-state coextrusion over the whole composition range, amorphous blends were drawn at temperature below T g s (25 °C), while the crystalline blends were drawn at 125°C and at temperature above T g s (225°C) of the blends.