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Sota Shikata Tsubasa Watanabe Kazuyuki Hattori Masakazu Aoyama Tetsuo Miyakoshi 《Journal of Material Cycles and Waste Management》2011,13(2):127-130
We examined dissolution of polystyrene (PS) into cyclic monoterpenes present in tree essential oils, in order to develop an
environmentally friendly shrinking agent for expanded polystyrene. The relationship between the chemical structure of the
monoterpenes and their dissolution power for PS was studied through the solubility parameter (δ) and apparent activation energy (E
a) for dissolution. (R)-Limonene and its structural isomers on a C=C bond have high solvent power for PS. This favorable solubility was explained
by their solubility parameters. The occurrence of hydroxyl group in a solvent molecule, such as in terpinen-4-ol, reduced
affinity for PS. Bicyclic monoterpenes and 1,8-cineole, which have sterically bulky structure, showed limited dissolution
power even though they have solubility parameters similar to that of (R)-limonene. Their bulky structures would interfere with permeation of solvent into the PS matrix. Cyclic monoterpenes and
PS were recovered almost quantitatively by simple steam distillation of the PS solution. 相似文献
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Miyakawa S Takahashi K Hattori M Itoh K Kurazono T Amano F 《Journal of environmental biology / Academy of Environmental Biology, India》2006,27(1):157-158
We experienced five cases of Salmonella oranienburg infection in children living in Saitama prefecture. Thereafter the number of patients with S. oranienburg infection increased not only in Saitama (55 cases) but also in other parts of Japan in 1999 (1505 cases) in 1999. The source of S. oranienburg infection was identified as a snack made from semi-dry cuttlefish. 相似文献
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Results of red tide formation in Tokyo Bay 总被引:2,自引:0,他引:2
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Nakao Keisuke Suto Hitoshi Hattori Yasuo Kikumoto Hideki 《Environmental Fluid Mechanics》2022,22(4):663-682
Environmental Fluid Mechanics - This study applies the models describing the effect of a neutrally stratified high-Reynolds-number boundary layer on peak wind estimation. A neutrally stratified... 相似文献