Personal Research Database

Title: Sen-I Gakkaishi

ISO Abbreviated Title: Sen-I Gakkaishi

JCR Abbreviated Title: Sen-I Gakkaishi

ISSN: 0037-9875

Issues/Year: 12

Journal Country Japan

Language: English

Publisher: Soc Fiber Sci Technol

Publisher Address: Kamiosaki 3-3-9, 208 Shinagawa-Ku, Tokyo 141, Japan

Subject Categories:

Materials Science, Textiles: Impact Factor

Polymer Science: Impact Factor 0.170, 63/69 (2000)

? Nakamura, S. and Sanada, N. (1997), Preparation of cellulose derivatives with long alkylamino groups in the side chains and their adsorption behavior of heavy metal ions. Sen-I Gakkaishi, 53 (10), 467-470.

Abstract: 6-(Alkylamino) deoxycelluloses were prepared from 6-chlorodeoxycellulose and n-alkylamines, CH₃ (CH₂)_mNH₂ (m = 5, 11, 17), and their adsorption behavior of divalent heavy metals ions, Co²⁺, Ni²⁺, Cu²⁺ and Cd²⁺, was as examined. Metal ions were adsorbed on these alkylaminocelluloses in weakly acidic solution. The proportion of adsorbed metal ions increased with increasing pH of the solution and was dependent on the length of the alkyl chain in the order of n-stearylaminodeoxycellulose (m = 17) > n-laurylaminodeoxycellulose (m = 11) > n-hexylaminodeoxycellulose (m = 5). The adsorptive activity of n-laurylaminodeoxycellulose was found to be in the order of Cu²⁺ > Co²⁺, Cd²⁺ > Ni²⁺. Since these adsorbents had a single coordination site in the pendant groups, the proportion of adsorption against metal ions was much lower than that of cellulose derivatives having two coordination sites in the pendant groups reported previously.

? Aoki, N., Tanaka, K., Sakamoto, M. and Furuhata, K. (1999), Sorption of metal ions by bead cellulose grafted with amidoximated polyacrylonitrile. Sen-I Gakkaishi, 55 (12), 569-575.

Abstract: Bead cellulose samples with amidoximated polyacrylonitrile grafts were examined as sorbents for metal ions. The amount of the ion sorbed from 40 mM solution in a fixed period increased in the order Cd(II), Zn(II) < Pb(II) < Cu(II) much less than Ag(I). The treatment of bead samples with NaOH solutions caused the swelling, and both the amount of the metal ion sorbed and the sorption rate increased considerably after the NaOH treatment. More than 90% of metal ions sorbed by the beads were desorbed in 0.5 M H₂SO₄. The sorption-desorption-NaOH treatment cycle could be repeated without significant reduction in the extent of sorption.

Keywords: Uranium Adsorption, Chelating Resins, Seawater, Recovery, Adsorbent, Fiber, Imidedioxime, Stability, Ability

? Hamada, K., Oshiki, K. and Shirai, H. (1999), Sorption of fluorinated azo dyes containing two sulfonate groups by a nylon 6 film. Sen-I Gakkaishi, 55 (12), 584-589.

Abstract: Derivatives of disodium 1-phenylazo-2-hydroxy-3,6-naphthalenedisulfonate some of which contain a trifluoromethyl or methyl group, were prepared and their sorption behavior by a nylon 6 film at pH3 was investigated. The dye uptake by the nylon 6 film increased linearly with sorption lime. The slopes of the linear plots varied depending on the dye structure: the kind and number of the substituents in the dyes affected the slopes. The analysis of the sorption isotherms based on a dual sorption mechanism, which consists of partition and Langmuir type sorption, gave the partition coefficients (K-P) and the number of binding sites (n) and intrinsic binding constants (K-L) for the Langmuir type sorption. The introduction of the trifluoromethyl or methyl group into the dye molecules hardly influenced K-P and n, while it changed the K-L values significantly. Furthermore, thermodynamic parameters, enthalpy change and entropy change, for the Langmuir type sorption were greatly affected by the replacement of the substituents, suggesting that the hydrophobic interaction should be concerned with the Langmuir type sorption.

Keywords: Water-Soluble Polymers, Monoazo Dyes, Atoms

Title: Sensor Letters

Full Journal Title: Sensor Letters

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Subject Categories:

: Impact Factor

? Fujiwara, Y. and Amao, Y. (2006), Fluorescence behavior of pyrene-1-butylic acid chemisorption layer onto nano-porous anodic oxidized aluminum with myristic acid layer for optical oxygen sensing. Sensor Letters, 4 (2), 139-143.

Full Text: Sen Let4, 139

Abstract: The fluorescence behavior of pyrene-1-butylic acid (PBA) chemisorption layer onto nano-porous anodic oxidized aluminum with a myristic acid layer was investigated and its device was applied as a fluorescence oxygen sensing material. When the ratio of [myristic acid]/[PBA] onto anodic oxidized aluminum plate increased, the fluorescence intensity due to monomer emission increased and the intensity due to excimer emission decreased. These results show that the polarity of the microenvironment around PBA molecules increased by chemisorption of myristic acid and the excimer formation between PBA molecules was suppressed by the myristic acid layer onto nano-porous anodic oxidized aluminum plate. Both of fluorescence attributed to monomer and excimer were quenched by oxygen. The I-0/I-100 values, where I-0 and I-100 represent the detected fluorescence intensities from a substrate exposed to 100% argon and 100% oxygen, respectively, in monomer emission increased with increasing the ratio of myristic acid to PBA. In contrast, the I-0/I-100 values in excimer emission decreased with increasing the ratio of myristic acid to PBA. The PBA onto anodic oxidation of aluminum plates with myristic acid layer obey the modified Stern-Volmer equation and the Stern-Volmer constant, K-SV at 376 nm attributed to monomer and 461 nm attributed to excimer increased and decreased with increasing the ratio of myristic acid to PBA.

Keywords: Optical Oxygen Sensing, Pyrene, Nano-Porous Anodic Oxidized Aluminum, Fluorescence, Infrared Spectroscopic Analysis, 1-Pyrenedecanoic Acid, Luminescence Probe, Aqueous-Solutions, Carboxylic-Acids, Surfaces, Adsorption, Sensor, Film, Polyelectrolytes

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