The first known T n ~ T 1 absorption spectra of a potassium salt of poly [4,6-decadiyn-l,10-diol-bis(carboxyl-methyl-urethane)] at three different pH values (7.5, 7.1, and 6.0) were measured over a wavelength region of 400-900 nm by use of a Q-switched Nd : YAG laser. The T n ~ T 1 spectra and their
Fluorescence spectrum and lifetime of urethane-substituted polydiacetylene in solution
โ Scribed by Shin-ya Koshihara; Takayoshi Kobayashi; Hisao Uchiki; Tadao Kotaka; Hiroshi Ohnuma
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 474 KB
- Volume
- 114
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
The spectrum and lifetune of the IluoTescence from water soluble poly[4,6decadiyn-l,lO+ziiol-bigcarboxyl-methylurethane)] at three pH values (7.5,7-l, and 6.2) were measured at room temperature. At these pH values the lifetime was 9 k 3 ps and the spectrum was independent of the eyntation wavelength. Discussion was made on the basis of Fbrster-type energy transfer among the conjugated sequences of repeat units
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