Kazuyoshi Iimura

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A novel acylated delphinidin glycoside was isolated from the blue-purple flowers of Eichhornia crassipes as a major pigment, and was identified as (6'''-O-(delphinidin 3-O-(6''-O-(beta-D-glucopyranosyl)-beta-D-glucopyranosyl))) (6''-O-(apigenin 7-O-(beta-D-glucopyranosyl)))malonate by spectral methods. The three dimensional structure of this pigment was(More)
Side-chain liquid crystal polyethyleneimines (PEI; P-n) with different spacer lengths (n) were synthesized, and their thermal and liquid crystalline properties were examined. The P-n polymers showed liquid-crystalline phases upon heating and cooling. P-n with a short methylene spacer (n1⁄42–5) formed a smectic A (SmA2) phase with a bilayered structure.(More)
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