A highly efficient sublimation purification system using baffles with orifices
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概要
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Here we report a highly efficient sublimation purification system using baffles with orifices in the sublimation tube. It is clearly demonstrated that the purity of materials is increased largely by introducing some pieces of baffles with orifices in the high-temperature region (sublimation region), which was confirmed by comparing the melting point (T-m) and the high-performance liquid chromatography (HPLC) purity with those of purified one by a conventional system. The driving voltages of electroluminescence (EL) devices were also compared and showed the same tendency with the T-m and HPLC purity data. Not only the purity but also the effective yield of purified materials was also increased by introducing baffles in low-temperature region. Some expected mechanisms of improving the purification efficiency by introducing baffles were also discussed.
著者
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Taniguchi Yoshio
Department Of Functional Polymer Science Faculty Of Textile Science And Technology Shinshu Universit
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Taniguchi Yoshio
Advanced Research Laboratory Hitachi Ltd.
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Ichikawa Mitsuru
Department Of Electrical And Electronic Engineering Tokyo Institute Of Technology
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Ichikawa Musubu
Functional Polymer Science Course Chemistry And Materials Division Faculty Of Textile Science And Technology Shinshu University
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