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We found a drastic change in orientation of cylindrical microdomains from perpendicular to parallel with respect to the film surface by thermal annealing for a liquid crystalline diblock copolymer, PEO122‐PMA(Az)50, consisting of poly(ethylene oxide) (PEO) and poly(methacrylate) with the side chain of a liquid crystalline azobenzene moiety. Non‐contact mode AFM (atomic force microscopy) is used to...
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