The structure and dynamics of thin poly(styrene)-b-(polybutadiene) copolymer films studied by x-ray scattering

POSTER

Abstract

We have investigated the structure and dynamics of thin diblock copolymer films of poly(styrene)-b-poly(butadiene) using x-ray reflectivity, diffuse scattering, grazing incidence small angle scattering (GISAXS), and x-ray photon correlation spectroscopy (XPCS), respectively. The measurements were performed at temperatures below and above the order-disorder transition temperature (ODT) of bulk with different film thicknesses. The x-ray reflectivity and GISAXS results show that the structural changes appear at lower temperature than ODT of bulk. These results will be discussed with the findings from the XPCS.

*supported by Korea Science \& Engineering Foundation and Seoul Research \& Business Development program (10816).

Authors

  • Sanghoon Song

    • Dept. of Physics \& Interdisciplinary Program of Integrated Biotechnology, Sogang University, Korea
    • Department of Physics \& Interdisciplinary Program of Integrated Biotechnology, Sogang University, Korea

  • Youngsuk Byun

    • Dept. of Physics \& Interdisciplinary Program of Integrated Biotechnology, Sogang University, Korea

  • Jeeun Kim

    • Dept. of Physics \& Interdisciplinary Program of Integrated Biotechnology, Sogang University, Korea

  • Daeyong Eom

    • Dept. of Physics \& Interdisciplinary Program of Integrated Biotechnology, Sogang University, Korea

  • Wonsuk Cha

    • Dept. of Physics \& Interdisciplinary Program of Integrated Biotechnology, Sogang University, Korea

  • Hyunjung Kim

    • Dept. of Physics \& Interdisciplinary Program of Integrated Biotechnology, Sogang University, Korea