Journal of the Japan Society of Colour Material
Online ISSN : 1883-2199
Print ISSN : 0010-180X
ISSN-L : 0010-180X
Volume 92 , Issue 1
Showing 1-4 articles out of 4 articles from the selected issue
Original Technical Paper
  • Hideki HAYASHI, Keiji MURAKAMI, Yukio ONOUCHI, Mitsuo ODA, Hidenobu NA ...
    2019 Volume 92 Issue 1 Pages 2-6
    Published: January 20, 2019
    Released: January 26, 2019

    Poly (dibenzazepine) (PAzep) was synthesized by Ni-promoted dehalogenative polycondensation of corresponding dibromide BrAzep, and the properties of PAzep were investigated. The bridging unit of diphemylamine unit of PAzep and substituent on the N atom influenced the optical properties. Polymerization method also changed optical properties of PAzep. Cyclic voltammogram of PAzep cast film was independent from cast solvent whereas cast solvent of poly (phenazasiline) (PPhenaz) changed electrochemical properties. PAzep was useful as fluorescent additive for resin.

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  • Yoshitaka KITAMOTO
    2019 Volume 92 Issue 1 Pages 7-13
    Published: January 20, 2019
    Released: January 26, 2019

    Nanocomposites of magnetic materials and gold nanostructure that exhibit localized surface plasmon resonance are studied to apply to nanomedicine devices with both magnetic and optical functions. Gold nanostructures, such as nanoshells and nanoparticle-assemblies, are synthesized on magnetic particles via electroless plating to develop a heating source for photothermal therapy and a sensing label for magneto-optical diagnosis. Synthesis conditions of the gold nanostructures are investigated to tune their optical properties, which depend on their morphological features. Their optical absorption peak is shifted to a longer wavelength region by changing the morphology from nanoparticle-assembly to nanoshell structure.

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Serial Lecture
  • Daisuke IMANISHI
    2019 Volume 92 Issue 1 Pages 21-27
    Published: January 20, 2019
    Released: January 26, 2019

    As global warming issues become more serious, we are working to reduce the emission of carbon dioxide, which is a greenhouse gas, in all countries around the world. Carbon dioxide emitted from transportation equipment is also subject to regulation, and in particular, each country decides the strict carbon dioxide emissions regulation value for automobiles, and is working on improving fuel consumption. In order to improve fuel consumption, weight reduction of the vehicle body is effective along with the performance improvement of the power train, and the use of ultra-high tensile strength steel and carbon fiber reinforced plastic etc. are effective for weight reduction of the vehicle body. In this paper, we describe the prospects for lightweight materials required for lightweight automobile bodies from the forecast of carbon dioxide emissions regulations in the future.

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