2007 NSTI Nanotechnology Conference and Trade Show - Nanotech 2007 - 10th Annual

Synchrotron X-Ray Scattering Studies of Star-Shape Polymers

S. Jin, T. Higashihara, K.S. Jin, J. Yoon, K. Heo, J. Kim, K.-W. Kim, A. Hirao and M. Ree
Pohang University of Science and Technology, KR

Keywords:
small angle X-ray scattering, multi-arms star-polystyrene, Indirect Fourier Transformation

Abstract:
The physical properties of well-defined star-shape polystyrenes with high number of arms (6 to 57 arms) in good and theta solvents were studied using synchrotron X-ray scattering. The scattering profiles for multi-armed polystyrenes shown the molecular shape is changed according to increasing of number of arm. From various parameters which were obtained from scattering profiles, the molecular shape was determined more detail. As results, the molecular shape was changed from a fuzzy-ellipsoid for 6-armed PS to a fuzzy-sphere sphere for 57-armed PS according to increasing of number of arm.

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