Effect of Secondary Treatments on the Phase Transition of Polydiacetylene LB Films : Chemistry : incl. physical process
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概要
- 論文の詳細を見る
The photochromic behavior of polydiacetylene LB films has been investigated for samples with different secondary treatments. The monomer film is initially converted to the A-type polydiacetylene LB film showing a pronounced red-shifted band and then to the B-type one, depending on the duration time of UV irradiation. Acid vapor treatments, either before or after the initial UV irradiation, show a tendency to hinder the transition from A-type to B-type on the excessive UV irradiation, with the yield of A-type polymer being enhanced. Further, another type of red-shifted band has been found in the case of a successive process; acid vapor treatment → heat treatment → UV irradiation, which may be dependent on the degree of polymerization. The relation between these results and the yield of polymerization of the films is explained by assuming an order-disorder scheme of the phase transition.
- 社団法人応用物理学会の論文
- 1988-06-20
著者
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Saito Minoru
Division Of Cellular & Molecular Toxicology National Institute Of Health Sciences
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KURODA Shin-ichi
Electrotechnical Laboratory
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SAITO Kazuhiro
Tochigi Research Laboratories of Kao Corporation
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SATO Michio
Div. of Medical Devices National Institute of Hygienic Sciences
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SAITO Kazuhiro
Electrotechnical Laboratory
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Sugi Michio
Electrolechnical Laboratory
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IKEGAMI Keiichi
Electrotechnical Laboratory
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SAITO Mitsuyoshi
Electrotechnical Laboratory
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Ikegami K
Department Of Chemical Engineering And Materials Science Faculty Of Engineering Doshisha University
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