Blends of syndiotactic styrene/p-methyl styrene copolymer (SPMS) and poly(styrene)-block-poly(ethene-co-butyl (SEBS) as well as their uniaxial drawing behavior and performance were investigated. Mixing was performed using a batch mixer at 280 degreesC. Morphology was evaluated using scanning electron microscopy (SEM). Thermal properties, orientation acid tensile properties were determined using differential scanning calorimetry (DSC), the spectrographic birefringence technique, and a tensile testing machine, respectively. The blends of SPMS/SEBS, 90/10 and 80/20 showed a two-phase structure with an SEES disperse phase In SPMS matrix. The average sizes of the SEES particles and tensile properties of the blends were affected by blending time and compositions. No significant effects on the tensile modulus and strength were observed for the blends containing 10% SEES or below. The quenched SPMS and SPMS/SEBS (90/10) blends were drawn at 110 degreesC, and their crystallinity and orientation development compared. These were similar for both samples at low draw ratios (<3.2), but were much faster for SPMS at higher draw ratios. The orientation process is shown to substantially Increase the strength and modulus in the drawing direction for SPMS and the blends. The toughness (energy under the stress-strain curve) increased upon addition of SEES and orientation, with a marked effect of the latter. SEM observation reveals that the dispersed SEES has been extended to about the same draw ratio as the bulk blend in the drawn blends, indicating efficient stress transfer at the interface.