巻号一覧
36 巻, 5 号
選択された号の論文の12件中1～12を表示しています
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木下 茂武1980 年 36 巻 5 号 p. P148-P155
発行日: 1980/05/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (517K) -
山口 一郎1980 年 36 巻 5 号 p. P157-P164
発行日: 1980/05/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (3418K) -
森本 正和1980 年 36 巻 5 号 p. P165-P171
発行日: 1980/05/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (515K) -
矢沢 将英1980 年 36 巻 5 号 p. P172-P176
発行日: 1980/05/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (1869K) -
矢部 章彦1980 年 36 巻 5 号 p. P177-P181
発行日: 1980/05/10
公開日: 2008/11/28
ジャーナル フリーPDF形式でダウンロード (414K) -
高橋 直通, 鈴木 文男, 前田 明, 小野里 健二1980 年 36 巻 5 号 p. T189-T195
発行日: 1980/05/10
公開日: 2008/11/28
ジャーナル フリー熱水処理ナイロン4の粘度及び熱D2Oによる重水素化度の測定によって,ナイロン4の水アイセシビリティー解析における加水分解の影響を吟味した。その結果,ナイロン4の加水分解を一次反応とするとき,加水分解定数は1.59×10-4min-1 (ナイロン6では4×10-6min-1),加水分解活性化エネルギーは17kcal/mol (ナイロン6では24kcal/mol),平衡加水分解度αは150°Cで35×10-3 (ナイロン6では5.5×10-3)であり,ナイロン4はナイロン6よりも加水分解を受け易いことがわかった。
ナイロン4とD2O水溶液との間のD分配係数に及ぼす加水分解の影響は次の式で表わされる。ここに, CdDは総括的D分配係数, CNHD, CCOOHD及びCNH2Dはそれぞれ, D2O溶液と-NHCO-, -COOH及び-NH2との間の分配係数であり, CCOOHDとCNH2Dの値はコハク酸及びβアラニンを加水分解鎖末端基のモデル物質として,それぞれ1.12及び1.14と定めた。bは主鎖中の-NHCO-結合の数である。
これらの結果, bが113のナイロン4についてみれば加水分解によって生ずるアクセシビリティー値の誤差は0.2～0.3%であり,またナイロン6と同様にナイロン4でもプロトン移動機構による重水素化は起らないことも確められた。抄録全体を表示PDF形式でダウンロード (380K) -
曽根 健夫, 木村 光雄, 砺波 宏明1980 年 36 巻 5 号 p. T196-T200
発行日: 1980/05/10
公開日: 2008/11/28
ジャーナル フリーOur previous study has shown that the rayon fiber in which both acid and hydrophobic groups were introduced, exhibits good dyeing property for cationic dyes and good colour fastness to washing.
In the present paper, the effects of the acid groups introduced by carboxymethylation on the fastness of the fibers are discussed thermodynamically to find the origin of the good fastness.
Results obtained are as follows:
When only acid groups were introduced into the rayon fibers, the affinities of a cationic dye, C. I. Basic Red 18, to the fiber are the same as those to the untreated fibers, and the enthalpy and entropy changes on the dyeing differ not much from the values for the untreated fibers.
Therefore, it is concluded that the introduction of acid groups into the rayon fibers is not effective to improve the fastness to washing of dyed fibers.抄録全体を表示PDF形式でダウンロード (310K) -
富岡 享, 小島 盛男1980 年 36 巻 5 号 p. T201-T207
発行日: 1980/05/10
公開日: 2008/11/28
ジャーナル フリーA study of controlling the latent crimpability in the bicomponent polyethylene/polypropylene fibers has been made according to the information on the elastic and thermal shrinkages for each component of the fiber.
The low latent crimpability can be obtained by drawing at 100°C or higher and a drawing ratio of 3 or larger of the bicomponent fiber of which the flow rate ratio of the component polymers is larger than 3.
The results are explained in terms of the temperature effect which gives the different shrinkage to each of the two components, depending on the shape of the interface between them.抄録全体を表示PDF形式でダウンロード (888K) -
宮松 徳久, 小口 登1980 年 36 巻 5 号 p. T208-T216
発行日: 1980/05/10
公開日: 2008/11/28
ジャーナル フリーMixtures of vinyl and divinyl monomers are impregnated into various fibers and polymerized to make fibrous ion exchangers by introducing ion exchange groups. Among various man made fibers used as fiber matrices, polyvinyl chloride fiber (Tevilon) is most suitable for the processability of the in-fiber polymerization and chemical resistance of the resulted fiber. Monomer mixtures used are styrenedivinylbenzene, vinyl benzyl chloride-divinyl benzene and methyl metacrylate-divinyl benzene.
Strong acidic cation, strong basic anion, weak acidic cation and weak basic anion exchangers are produced in fibrous form by the above processes.
These fibrous ion exchangers have following characteristics.
(1) Ion exchange capacity of the fibrous ion exchangers depends upon the amount of polymer added the fiber. Maximum ion exchange capacities with keeping the good fibrous form attain 2/3 to 4/5 of those of corresponding resinous ion exchangers.
(2) Swelling ratio of the fibrous ion exchangers also depends upon the degree of crosslinking. For the low degree of crosslinking, degree of water swelling is lower than those of corresponding resinous ion exchangers.
(3) The fibrous ion exchangers prepared have good abrasion and flexural resistances and tensile strength.抄録全体を表示PDF形式でダウンロード (1261K) -
宮松 徳久, 小口 登1980 年 36 巻 5 号 p. T217-T222
発行日: 1980/05/10
公開日: 2008/11/28
ジャーナル フリーThe preparation and characteristics of fibrous ion exchangers composed of vinyl polymers, for example, a strong basic cation exchanger based on styrene-divinylbenzene are studied.
After the impregnated monomer mixture is polymerized in-fiber, the original fiber is dissolved away and ion exchange groups are introduced. For such polymerization process, acetate fiber is found to be suitable as the fiber matrix.
Monomer mixtures studied are styrene-divinyl benzene, vinyl benzyl chloride-divinyl benzene and methy metacrylate-divinylbenzene.
The fiber matrix is dissolved away by treating with 50wt% H2SO4 at 85°C for 4 hours. According to the above processes, various fibrous ion exchangers, namely, strong acidic cation exchanger, weak acidic cation exchanger, strong basic anion exchanger and weak basic anion exchanger are prepared.
The characteristics of these fibrous ion exchangers are clarified as follows.
(1) Fiber forms of the fibrous ion exchangers are essentially the same as that of acetate fiber.
(2) Relations between ion exchange capacity, degree of crosslinking and water swelling ratio are essentially the same as those found to corresponding resinous ion exchangers.抄録全体を表示PDF形式でダウンロード (906K) -
高橋 雅江, 竹中 はる子1980 年 36 巻 5 号 p. T223-T227
発行日: 1980/05/10
公開日: 2008/11/28
ジャーナル フリーRegenerated cellulose was marcerized to vary the Cell. II content and the change of the crystalline fine texture from Cell. I to Cell. II type was followed by SAX scattering method.
From the meridional scattering curves, three domain sizes (ellipsoidal particle) were obtained for Cell. I of Hemp (bast and leaf) and Cotton, while two domain sizes were obtained for Cell. II of Rayon; the diameters of the domains were about 100, 240 and 500 Å for more than 90% of all domains in the Cell. I, while they were about 100 and 200 Å for about 60% of all domains in the Cell. II. On the other hand, from the equatorial scatterin curves, two domain sizes were obtained for both Cell. I and Cell. II; the diameters were 90 and 300 Å for more than 80% of all domains.
For the regenerated cellulose containing Cell. I and Cell. II with various ratios, the obtained distribution of the domain size could be decomposed into those in the Cell. I and the Cell. II. This fact suggests that crystalline fine textures of Cell. I and Cell. II coexist in certain ratio in the regenerated cellulose.抄録全体を表示PDF形式でダウンロード (303K) -
南後 守, 片山 明, 黒木 宣彦1980 年 36 巻 5 号 p. T228-T231
発行日: 1980/05/10
公開日: 2008/11/28
ジャーナル フリーThe solubilities of disperse dyes in ethylene glycol have been examined by the concept of the regular solution in order to obtain the basic information on the hot solvent dyeing. The solubilities were determined at 5°C intervals from 10° to 40°C. From these results, the solubilities of the dyes in the super-cooled liquid state were calculated by considering the relative activity. Disperse dye-ethylene glycol solutions were compared with those of water and perchloroethylene on _??_ stands for the solubility of dye in the liquid state.抄録全体を表示PDF形式でダウンロード (203K)
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