Long-range density fluctuations in a symmetric diblock copolymer.
We present an experimental piece of evidence of the excess small-angle-scattering in a nearly symmetric diblock copolymer. This phenomenon is observed only in the two-phase coexistence region of the ordered and disordered phases near the order-disorder transition temperature, using the ultra-small-angle x-ray scattering method. This excess scattering is found to be caused by the difference of the density between the ordered and disordered phases in the coexistence region.
Koga
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T
Hashimoto Polymer Phasing Project, ERATO, Japan Science and Technology Corporation, Kyoto 606-8501, Japan.
Koga
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Kimishima
K
K
Hashimoto
T
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