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2 International Letters of Chemistry, Physics and Astronomy

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Cultivation of paramecium caudatum in the presence of physiologically active substances, and a redox active polymer

Goto H., Nakajima K.

International Letters of Chemistry, Physics and Astronomy

2015

Vol. 46

26--29

Cultivation of paramecium in the presence of physiologically active substances was carried out. We have monitored paramecium for 23 days in the solutions in the presence of physiologically active substances, and polyaniline as a redox active polymer.

Preparation of network π-conjugated copolymers with Ullmann type polycondensation

Nakajima K., Goto H.

International Letters of Chemistry, Physics and Astronomy

2014

Vol. 6

33--38

Ullmann type polycondensations in the presence of CuI and a base were carried out to afford network type π-conjugated copolymers. Infrared absorption spectroscopy measurements and surface observation using a scanning electron microscopy are carried out. Electron spin resonance spectroscopy measurements revealed that the cross-linked copolymers thus obtained contain small amount of copper. This polymerization conveniently allows production of network π-conjugated polymers. The polymer can be expected to have thermo-resistance.