Journal of Materials Life Society

Online ISSN : 2185-7016
Print ISSN : 1346-0633
ISSN-L : 1346-0633

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Volume 18, Issue 3

Displaying 1-8 of 8 articles from this issue

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[title in Japanese]

Shin-ichi KURODA

2006 Volume 18 Issue 3 Pages 80-85
Published: July 31, 2006
Released on J-STAGE: April 19, 2011

DOIhttps://doi.org/10.11338/mls2001.18.80

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[title in Japanese]

Satoru HASHIMOTO, Teruyoshi HIRANO

2006 Volume 18 Issue 3 Pages 86-91
Published: July 31, 2006
Released on J-STAGE: April 19, 2011

DOIhttps://doi.org/10.11338/mls2001.18.86

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[title in Japanese]

Ken YOSHIOKA

2006 Volume 18 Issue 3 Pages 92-95
Published: July 31, 2006
Released on J-STAGE: April 19, 2011

DOIhttps://doi.org/10.11338/mls2001.18.92

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[title in Japanese]

Norikazu SAKUMA

2006 Volume 18 Issue 3 Pages 96-100
Published: July 31, 2006
Released on J-STAGE: April 19, 2011

DOIhttps://doi.org/10.11338/mls2001.18.96

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[title in Japanese]

Shin-ichi KURODA, Yasuhiko TSURUMOTO

2006 Volume 18 Issue 3 Pages 101-104
Published: July 31, 2006
Released on J-STAGE: April 19, 2011

DOIhttps://doi.org/10.11338/mls2001.18.101

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Biodegradation of Water-Soluble Polymers by Active Sludge

Namiko INABA, Hiroaki KOUZAI

2006 Volume 18 Issue 3 Pages 105-111
Published: July 31, 2006
Released on J-STAGE: April 19, 2011

DOIhttps://doi.org/10.11338/mls2001.18.105

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Biodegradation of water-soluble polymers by active sludge has been examined. The polymers including hydroxyl groups and carboxyl groups in their side chains and polypeptides, etc. Results showed the more carboxyl groups in the polymers, the easier the biodegradation occurs in the hydrolysate of vinyl acetate and methyl acrylate copolymers. Furthermore, biodegradation rarely occurs of higher molecular weight, namely polypeptide. This tendency is more appreciable in the synthetic polymers prepared by heat polycondensation method, than that of polypeptides synthesized by on N-Carboxy amino acid anhydrides method.

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[title in Japanese]

[in Japanese], [in Japanese], [in Japanese]

2006 Volume 18 Issue 3 Pages 112-114
Published: July 31, 2006
Released on J-STAGE: April 19, 2011

DOIhttps://doi.org/10.11338/mls2001.18.112

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Development of Weak-Luminescence Spectrometer

Applications to Chemiluminescence Measurements

Kazuo TUKINO, Jun KUMAGAE

2006 Volume 18 Issue 3 Pages 115-122
Published: July 31, 2006
Released on J-STAGE: April 19, 2011

DOIhttps://doi.org/10.11338/mls2001.18.115

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Some organic materials such as plastic, rubber and foods emit ultra weak luminescence (so called chemiluminescence) during their degradation proceeding very slowly. We have developed a Weak-Luminescence Spectrometer to obtain precise spectrum data for the chemiluminescence. This apparatus was constructed on the principle of multi channel Furier-transform spectrometer combining CCD image sensor and Savart plate interferometer. Some typical chemiluminescence spectrum data for the cooking oil and some medicines were observed with the Weak-luminescence Spectrometer.

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