Proceedings of the Polymer Society of Korea Conference (한국고분자학회:학술대회논문집)

The Polymer Society of Korea (한국고분자학회)
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Molecular Shapes of Star-Polystyrenes with Various Arms in Solutions Determined using X-Ray Scattering

  • Jin, Sang-Woo (National Research Lab for Polymer Synthesis & Physics, Department of Chemistry, Pohang Accelerator Laboratory, Center for Integrated Molecular Systems, Polymer Research Institute, and BK School of Molecular Science, Pohang University of Science and Technology) ;
  • Higashihara, Tomoya (Department of Polymeric and Organic Material, Graduate School of Science and Engineering, Tokyo Institute of Technology) ;
  • Jin, Kyeong-Sik (National Research Lab for Polymer Synthesis & Physics, Department of Chemistry, Pohang Accelerator Laboratory, Center for Integrated Molecular Systems, Polymer Research Institute, and BK School of Molecular Science, Pohang University of Science and Technology) ;
  • Yoon, Jin-Hwan (National Research Lab for Polymer Synthesis & Physics, Department of Chemistry, Pohang Accelerator Laboratory, Center for Integrated Molecular Systems, Polymer Research Institute, and BK School of Molecular Science, Pohang University of Science and Technology) ;
  • Heo, Kyu-Young (National Research Lab for Polymer Synthesis & Physics, Department of Chemistry, Pohang Accelerator Laboratory, Center for Integrated Molecular Systems, Polymer Research Institute, and BK School of Molecular Science, Pohang University of Science and Technology) ;
  • Kim, Je-Han (National Research Lab for Polymer Synthesis & Physics, Department of Chemistry, Pohang Accelerator Laboratory, Center for Integrated Molecular Systems, Polymer Research Institute, and BK School of Molecular Science, Pohang University of Science and Technology) ;
  • Kim, Kwang-Woo (National Research Lab for Polymer Synthesis & Physics, Department of Chemistry, Pohang Accelerator Laboratory, Center for Integrated Molecular Systems, Polymer Research Institute, and BK School of Molecular Science, Pohang University of Science and Technology) ;
  • Hirao, Akira (Department of Polymeric and Organic Material, Graduate School of Science and Engineering, Tokyo Institute of Technology) ;
  • Ree, Moon-Hor (National Research Lab for Polymer Synthesis & Physics, Department of Chemistry, Pohang Accelerator Laboratory, Center for Integrated Molecular Systems, Polymer Research Institute, and BK School of Molecular Science, Pohang University of Science and Technology)
  • Published : 2006.10.13
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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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