巻号一覧
34 巻, 4 号
選択された号の論文の13件中1～13を表示しています
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辻 和一郎1978 年 34 巻 4 号 p. P95-P96
発行日: 1978/04/10
公開日: 2008/11/28
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山田 信夫1978 年 34 巻 4 号 p. P97-P102
発行日: 1978/04/10
公開日: 2008/11/28
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北丸 竜三, 堀井 文敬1978 年 34 巻 4 号 p. P103-P112
発行日: 1978/04/10
公開日: 2008/11/28
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三浦 義人1978 年 34 巻 4 号 p. P113-P119
発行日: 1978/04/10
公開日: 2008/11/28
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岡田 紀夫1978 年 34 巻 4 号 p. P120-P131
発行日: 1978/04/10
公開日: 2008/11/28
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経験的諸問題・テントについて安田 武1978 年 34 巻 4 号 p. P132-P137
発行日: 1978/04/10
公開日: 2008/11/28
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羽賀 敏雄, 坂井 芳男, 根津 修, 加藤 弘1978 年 34 巻 4 号 p. T145-T149
発行日: 1978/04/10
公開日: 2008/11/28
ジャーナル フリーThe structure of the amorphous part of poly (ethylene terephthalate) (PET) was studied in relation to the Case II swelling behavior. Swelling behavior was measured in chloroform using PET samples crystallized isothermally at 240°C from melt. From DSC data it was inferred that the Case II behavior is closely associated with thermodynamically stable chain-folded crystalline structure of the polymer. The structure of the amorphous part of the polymer, which seems to be responsible for the appearance of the Case II behavior, was found to be developed during the secondary stage of crystallization and to be not modified by the swelling procedure. The molecular motion of chain segments in the amorphous part was considered to be fairly restricted by the presence of crystallites.抄録全体を表示PDF形式でダウンロード (313K) -
河合 厚1978 年 34 巻 4 号 p. T150-T156
発行日: 1978/04/10
公開日: 2008/11/28
ジャーナル フリーAs a step to explicate the spinning mechanism of viscose rayon, the dehydrating power of aqueous inorganic electrolyte solution containing sulphuric acid was studied.
The amount of hydration of electrolytes in solution was determined by the ultrasonic velocity using the interferometer previously described. For Na2SO4 solutions containing H2SO4 or HCl, an anomalous phenomenon was observed in sonic velocity -concentration relationship when molar concentration of Na2SO4 was lower than that of the acids. However such an anomaly was not observed for NaCl solutions containing these acids.
The dehydrating power was calculated assuming that the amount of hydration could be obtained by Wada's formula when molar concentration of Na2SO4 is higher than that of H2SO4. The results show that dehydration power of aqueous Na2SO4 solution is reduced by the presence of H2SO4, but those of NaCl or NaNO3 solutions are not altered by H2SO4.
The dehydration index defined for the electrolyte solutions by the above investigation was linearly correlated with the coagulation index for partially saponified polyvinyl alcohol and polyvinyl pyrrolidone solutions.
From this and previous study, we conclude that the following four factors should be considered in understanding the viscose coagulation in the bath containing H2SO4 and Na2SO4.
a) Suppression of H+ by Na2SO4.
b) Suppression of diffusion of H2SO4 into viscose by Na2SO4.
c) Osmotic dehydration.
d) Decrease of dehydrating power of Na2SO4 by H+抄録全体を表示PDF形式でダウンロード (471K) -
Hiraku Ito, Takeaki Miyamoto, Hiroshi Inagaki1978 年 34 巻 4 号 p. T157-T165
発行日: 1978/04/10
公開日: 2008/11/28
ジャーナル フリーLow-sulfur S-carboxymethyl kerateine (SCMKA) contains a fraction having higher molecular weights than 105 as revealed by gel filtration in 8M urea solution, and this fraction has been considered as an aggregate of one of the major components of SCMKA, Component 7. The high-molecular-weight fraction was successfully isolated from SCMKA into two subtractions on a preparative scale by use of Sepharose CL-6B gels. Two major components of SCMKA, i. e., Component 7 and 8, were prepared by fractional precipitation method. It was found that the amino acid compositions of the high-molecular-weight fractions were almost identified with that for Component 7, and further that their molecular weights were 12×104 and 18×104. However, a series of experiments showed that any aggregate of Component 7 and 8 or each one of them alone could not be formed in 8M urea solution at pH 7.4. In connection with the multimerization of Component 7, intermolecular crosslinkages due to cystine and lanthionine residues were examined in different manner. It is pointed out that the presence of lanthionine residues in the high-molecular-weight fraction might be most closely related to this problem.抄録全体を表示PDF形式でダウンロード (588K) -
梶 加名子, 岡田 紀夫1978 年 34 巻 4 号 p. T166-T174
発行日: 1978/04/10
公開日: 2008/11/28
ジャーナル フリーFor the purpose of making polyester fiber flame retardant, experiments to incorporate chlorine atoms in poly (ethylene terephthalate) were undertaken by radiation-induced chlorination.
Filament or fabric of the polyester was placed in a glass reaction vessel in which chlorine gas was filled to atmospheric pressure and irradiated by γ-rays at room temperature. After irradiation of 20h at a dose rate of 5.6×104 rad/h, the chlorine contents were 6.2 and 4.8% for the filament and the fabric respectively. Further irradiation increased the chlorine content only a little. The initial G-value of the chlorination for the filament was calculated to be 3.8×104 When the polyester was impregnated with a suitable swelling agent and subjected to the chlorination, the reaction proceeded more rapidly.
The fibers with over 20% chlorine content were prepared by repeated filling of fresh chlorine and irradiation.
Tenacity of fibers decreased slightly by the chlorination; 4.9g/d of the original fiber to 3.5g/d for 13.7% chlorination. Although flame-retardance of the fiber was much improved by the chlorination, the thermal stability of the chlorinated fiber tested by a thermogravimetric analysis was inferior to that of the original fiber.抄録全体を表示PDF形式でダウンロード (582K) -
小川 利彦, 山田 芳郎, 井高 英一1978 年 34 巻 4 号 p. T175-T180
発行日: 1978/04/10
公開日: 2008/11/28
ジャーナル フリーWhen waste water of the dyeing industries are flowed into the sewarage, the lowering of the purificatory abilities in the activated sludge process are induced incidentally by the toxic properties of dyes for the microbes. In order to elucidate the toxic properties of the dyes, the respiratory inhibition of the microbes by various dyes were investigated by measuring the oxygen uptake rates. The inhibition by basic dye is stronger than that by acid dye when pH of the solution is above the isoelectric points of the microbes. The inhibition is reduced by mixing basic dye with acid dye to form the complex. Disperse dyes which have no charged groups show only weak inhibition at any pH. These facts indicate that the respiratory inhibition is influenced by the ionic interaction between the microbes and the dyes. The inhibition by direct dye is weaker than that by acid dye, suggesting that the permeation of direct dye into the microbe cell is difficult for such large molecule.抄録全体を表示PDF形式でダウンロード (429K) -
松居 正樹, 佐藤 吉彦, 柴田 勝喜, 高瀬 福巳1978 年 34 巻 4 号 p. T181-T186
発行日: 1978/04/10
公開日: 2008/11/28
ジャーナル フリーIn recent years, the ozone treatments of waste water has attracted attention because of its extensive uses. In this report, the conditions of decoloring reaction by ozone, mainly for a watersoluble azo dye, C. I. Acid Orange 12 (A. O. 12), have been reported. The results obtained are as follows:
1) In the decoloring of A. O. 12 by ozone
a) The reaction is of pseudo first order.
b) The dissociation of OH group of the dye and the self-decomposition of ozone appear to accelerate the reaction.
c) The aromatic rings are cloven to form carboxylic acids.
2) Ozone mainly attacks N=N bond in mono azo dyes.
3) A. O. 12 is considered to decompose to the final products via intermediates containing active oxygen.抄録全体を表示PDF形式でダウンロード (288K) -
矢吹 和之, 許斐 毅志, 今井 房夫1978 年 34 巻 4 号 p. T187-T191
発行日: 1978/04/10
公開日: 2008/11/28
ジャーナル フリーThe physical properties and the fatigue resistance of a copolymer fiber of Poly (p-phenyleneterephthalamide) (PPT) of which diaminocomonomer is NN′-Bisaminobenzoilethylenediamine were studied by the tensile measurement and the Good year tube fatigue test.
The following results were obtained.
1) With the decrease in the denier of wholly p-aromatic polyamide having extended chain structure, the toughness and fatigue resistance increase.
2) The durability of wholly p-aromatic polyamide used as a reinforcement material in rubber is determined by the resistance against compression.
3) The fatigue resistance of the copolymer fiber is superior to that of PPT fiber.抄録全体を表示PDF形式でダウンロード (1768K)
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