Polystyrene triblock coplymer SEBS

The SAXS pattern of polystyrene-poly(ethylene-r-butene)-polystyrene triblock copolymer (SEBS), oriented in plane strain compression (left) and the plot of "unwrapped" theta vs. Q (right). The scattering image was taken on Rigaku point-focusing S-MAX3000 SAXS system with a MicroMax-002+ microfocus X-ray source by research group of Prof. Richard A. Register in Department of Chemical Engineering at the Princeton University, Princeton, NJ.

SEBS self-assembless

The SAXS pattern reveals that the SEBS self-assembles into an ordered cylindrical structure with parameters shown in the picture below. The SAXS data also reveal an extremely strong orientation of the cylinders in the flow direction (FD). This point-focusing SAXS system can be used to reveal the local orientation at any point within the sample.

extremely strong orientation of the cylinders



The S-MAX3000 pinhole SAXS camera design is available with a choice of conventional or high brilliance X-ray sources. A 3-meter, fully evacuated camera length provides both high intensity and high resolution. Coupled with a fully integrated 2-dimensional multi-wire proportional counter, the system is capable of making highly sensitive measurements from both isotropic and anisotropic materials. A wide range of sample stage attachments provide maximum flexibility in controlling environmental sample conditions during measurement. Read more...