Journal of the Japan Society of Colour Material
Online ISSN : 1883-2199
Print ISSN : 0010-180X
ISSN-L : 0010-180X
Search
Advanced search
OR
Browse
Search
Volume 71, Issue 1
Displaying 1-7 of 7 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
  • Absorption Spectroscopic Studies on the Interactions between Azomethine Dyes and Poly (ethylene terephthalate) Film
    Yukinori NAGA, Yoshimi YATABE, Noriatsu MAEHARA, Yuichi MATSUMOTO, Yos ...
    1998 Volume 71 Issue 1 Pages 2-7
    Published: January 20, 1998
    Released on J-STAGE: November 20, 2012
    DOIhttps://doi.org/10.4011/shikizai1937.71.2
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    In order to obtain information on the dyeing mechanism of polyester fibers with azomethine dyes, we have investigated the interactions between a poly (ethylene terephthalate) film (PET) and azomethine dyes by the analysis of UV and visible absorption spectra in applying a modified McRae' s equation. The orientation force of the azomethine dyes estimated from the equation was about 0.1-0. 2kcal/mol, which was about 1 - 2 % of the total dye-PET interaction. The sum of dispersion and induction force of the azomethine dyes estimated from the equation was 7-14kcal/mol, which was about 98-99% of the total dye-PET interaction.
    View full abstract
    Download PDF (566K)
  • Intercalation of Organic Phosphates and Chiral Amines into γ-Zirconium Phosphates
    Masayuki NISHI, Hisashi FUJIHARA, Hajime KAWANAMI, Seishiro ITO, Masak ...
    1998 Volume 71 Issue 1 Pages 8-15
    Published: January 20, 1998
    Released on J-STAGE: November 20, 2012
    DOIhttps://doi.org/10.4011/shikizai1937.71.8
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    Intercalation of organic phosphates and chiral amines into layered γ -zirconium phosphate, Zr (HPO4) 2·2 H2O (abbreviated ZrP), was examined by XRD, elemental analysis, and TG.
    A linear relationship was recognized between carbon numbers of alkyl group and the basal spacing of intercalation compounds. The slope of the straight line was determined to be 1. 56, from which a tilting angle was calculated to be 38°, indicating the formation of bilayers of organic phosphate in the ZrP layer.
    Basal spacing and content of amine and organic phosphate of the intercalation compound were held constant over 250mmol/the organic phosphate was 250mmol/L or more. These results suggested that both the organic phosphate and chiral amine were intercalated into ZrP a at constant ratio and also that regular chiral intercalation compound was formed.
    View full abstract
    Download PDF (720K)
  • Solubilization of Aromatic Compounds by Vesicles Loaded with Cyclodextrin
    Chihiro KAISE, Hideki SAKAI, Yukishige KONDO, Norio YOSHINO, Manosroi ...
    1998 Volume 71 Issue 1 Pages 16-23
    Published: January 20, 1998
    Released on J-STAGE: November 20, 2012
    DOIhttps://doi.org/10.4011/shikizai1937.71.16
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    The objective of this study is to raise the solubilizing ability of vesicles consisting of didodecyldimethylammonium bromide (DDAB), a double chain cationic surfactant. We investigated the effects of β-cyclodextrin (β-CyD, a water-soluble oligosaccharide capable of incorporating molecules of proper sizes) added to the inner aqueous phase of the vesicles on the solubilization of aromatic compounds with the equilibrium dialysis, fluorescent probe, and dynamic light scattering methods.
    The size of DDAB vesicles loaded with β-CyD was found to be 60 nm when they were prepared under ultrasonic irradiation for a sufficiently long time. The solubilization equilibrium constant (K) of benzilic acid, which is a solubilizate hardly incorporated by the cyclodextrin, was noticeably larger for the β-CyD-loaded vesicles than that for DDAB vesicles containing no cyclodextrin (60 nm), whereas no remarkable increase was found in the K value of 3-phenylpropionic acid (HCA), which is a solubilizate easily incorporated by the cyclodextrin. Consequently, it was concluded that oily substances which are hardly incorporated by β-CyD are solubilized easily in the vesicle bilayers through the change in the bilayer property caused by the cyclodextrin in the inner aqueous phase of the vesicles.
    View full abstract
    Download PDF (1049K)
  • Trend of Development in Pre-coated Steel Sheet for Construction Materials
    Katsumi KANDA
    1998 Volume 71 Issue 1 Pages 24-35
    Published: January 20, 1998
    Released on J-STAGE: November 20, 2012
    DOIhttps://doi.org/10.4011/shikizai1937.71.24
    JOURNAL FREE ACCESS
    Download PDF (1536K)
  • Evaluation of Free Volume in Polymers by Positron Annihilation Lifetime Method
    Toshihiko NAKAMICHI
    1998 Volume 71 Issue 1 Pages 36-44
    Published: January 20, 1998
    Released on J-STAGE: November 20, 2012
    DOIhttps://doi.org/10.4011/shikizai1937.71.36
    JOURNAL FREE ACCESS
    Download PDF (1036K)
  • New Powder Coating Equipment
    Kenzo YANAGIDA
    1998 Volume 71 Issue 1 Pages 45-56
    Published: January 20, 1998
    Released on J-STAGE: November 20, 2012
    DOIhttps://doi.org/10.4011/shikizai1937.71.45
    JOURNAL FREE ACCESS
    Download PDF (2314K)
  • Ink Production and Engineering
    Norihisa NOGUCHI
    1998 Volume 71 Issue 1 Pages 57-67
    Published: January 20, 1998
    Released on J-STAGE: November 20, 2012
    DOIhttps://doi.org/10.4011/shikizai1937.71.57
    JOURNAL FREE ACCESS
    Download PDF (1366K)
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top