巻号一覧
11 巻 (1986)
- 6 号 p. 314-
- 5 号 p. 248-
- 4 号 p. 186-
- 3 号 p. 126-
- 2 号 p. 62-
- 1 号 p. 2-
11 巻, 2 号
選択された号の論文の7件中1～7を表示しています
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八木 達彦1986 年 11 巻 2 号 p. 62-70
発行日: 1986/03/01
公開日: 2011/03/04
ジャーナル フリーThis article reviews the significance of the membrane structures in microbial photohydrogen evolution and in the energy metabolism of anaerobic sulfate-reducing bacteria. Recent studies on artificial photohydrogen evolution systems composed of chloroplast photosystems and bacterial hydrogenase are also presented.
In constructing the artificial photohydrogen evolution system, it is necessary to separate the hydrogenase-catalyzed H2 evolution system from the photosynthetic electron-donating system so that the former may not be inhibited by the O2 produced from the latter. The use of an electric cell to separate them electrochemically is one proposal. The author also designed an artificially functionalized lyposome capable of photoevolving hydrogen in which the H2-producing system is separated from the photosynthetic O2-producing system.抄録全体を表示PDF形式でダウンロード (1196K) -
膜機能の新しい展開清水 剛夫, 彌田 智一1986 年 11 巻 2 号 p. 71-82
発行日: 1986/03/01
公開日: 2011/03/04
ジャーナル フリーPreparative method and application of functionalyzed conducting polymer membranes are described. These functionalyzed polymer membranes are obtained by electrolytic polymerizations of pyrrole, thiophene, furan and aniline in the presence of negatively-charged functional molecules. Incorporations of these anionic functional molecules are driven electrostatically by positive charges of a partially-oxidized polymer membrane matrices during in situ doping process. The resulting poymer membranes/electrodes show a wide variety of functions such as electrochromism, photoelectricity (photocurrent), electrogenerated chemiluminescence, peculier surface function by highly dispersed metal in conducting polymer matrix, membrane sensor and strong mechanical property, which are resulted from functions of incorporated (doped) anionic molecules. A negatively-charged polyelectrolyte incorporated in conducting polymer membrane shows charge-controllable property. In addition, chemically preparative methods for such conducting polymer membranes are described. Those functionalyzed conducting polymer membranes develop new fields of membrane science, with a novel concept of electron transport membrane.抄録全体を表示PDF形式でダウンロード (1941K) -
板谷 謹悟, 内田 勇1986 年 11 巻 2 号 p. 83-91
発行日: 1986/03/01
公開日: 2011/03/04
ジャーナル フリーElectrochormic properties of thin films of polymers as the active layer are reviewed with emphasis on the basic mechanisms of the electron transfer reaction in the modified layer. These include the concept of the electrochemistry of modified electrodes. Various typical examples for preparing thin films have been discussed. Organic as well as inorganic polymers such as Prussian blue can be applied for electrochromic display devices without critical problems of device lifetime and degradation.抄録全体を表示PDF形式でダウンロード (1087K) -
土屋 友房, 島本 整1986 年 11 巻 2 号 p. 92-98
発行日: 1986/03/01
公開日: 2011/03/04
ジャーナル フリーProgresses on H+ -solute cotransport systems are reviewed. We focus mainly on the lactose transport system of Escherichia coli, which is the best characterized H+ -substrate cotransport system. Structure-function relationship in the transport carrier, which has been studied from biochemical and genetic aspect, is discussed.抄録全体を表示PDF形式でダウンロード (1036K) -
岩間 昭男1986 年 11 巻 2 号 p. 99-108
発行日: 1986/03/01
公開日: 2011/03/04
ジャーナル フリーA feasibility has been studied, on physical process for refining soybean oil by using ultra-filtration.
In this work, the following was clarified. The solvent-resistant polyimide ultrafiltration membrane, which is available from Nitto Electric Industrial Co., Ltd., designated as NTU-4200, is effective for processing soybean miscella at 40°C, and molecular weight cutoff Value 20000 of the polyimide ultrafiltration membrane gives good results for degumming soybean miscella. And, total physical refining process of soybean oil is practicable.
From economical estimation by bench-scale test plant, physical refining of soybean oil by use of membrane separation is effectively profitable, comparing with the conventional chemical refining. This might be epochmaking matter for oil industry.抄録全体を表示PDF形式でダウンロード (1199K) -
渡辺 敦夫, 駒沢 克己, 鍋谷 浩志, 中嶋 光敏, 中尾 真一1986 年 11 巻 2 号 p. 109-114
発行日: 1986/03/01
公開日: 2011/03/04
ジャーナル フリーAs Japanese larch is widely afforested in Hokkaido, utilization of lumber from thinning is required. A larch bark contains polyphenols such as tannic acid and phenolic acid. As concentrate of polyphenols can be used for a bonding agent, self-rejection type of dynamically formed membrane was applied to the concentration of polyphenols in alkaline extract from larch bark. During concentration of extract up to two fold at pH 10.15, observed rejection, yield, and purity were 83%, 86%, and 82%, respectively. Mean permeation flux was about 30kg m-2h-1. The recommended operating conditions were pH 10.15, pressure 0.5 M Pa, flow rate 4.3 1. min -1 in the present study.抄録全体を表示PDF形式でダウンロード (638K) -
大矢 晴彦, 丹羽 雅裕, 岡田 実, 奥野 浩二, 根岸 洋一, 松本 幹治1986 年 11 巻 2 号 p. 115-123
発行日: 1986/03/01
公開日: 2011/03/04
ジャーナル フリーReverse osmotic concentration of aqueous 2-propanone (acetone) solutions was carried out, using cellulose acetate membranes and composite membranes (PEC-1000, FT-30 and NS-100). Separation of acetone and flux through the membranes were measured within the following ranges : concentration of acetone (C1) = 1 to 10wt% and operating pressure (ΔP) = 4-7MPa.
PEC-1000 gave the best acetone separation. Its separation was above 90%. However, pure water permeation flux after experiment was reduced to the one-tenth of the initial value, remaining the same salt rejection, because of the degradation of support membrane.
The acetone-proof composite RO membranes (ON membranes) of which support membrane was polyimide OF membrane were prepared. Separation of acetone and flux through the ON membranes were measured at the following conditions : C1 = 1 and 2wt% and ΔP = 1.96MPa.
The permeation fluxes after experimemt remained unchanged for ON membranes.
Membrane constants were calculated by Spiegler-Kedem's membrane transport model. The deviation from their model was corrected by the compaction coefficients.
The estimated acetone separation for ON membrane was almost the same as the experimental value obtained for NS-100 P3500 membrane. The estimated flux was about 6 times larger than that for PEC-1000.
Its separation and flux through the ON membrane (1wt% aqueous acetone solution RO concentration at 5.5MPa) was 92%, 0.25mol·m-2, s-1, respectively.抄録全体を表示PDF形式でダウンロード (936K)
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