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Volumn 70, Issue 7, 1997, Pages 1659-1664

Laser-Flash Photolysis in High-Speed Photopolymer Coating Layers Containing Carbonylbiscoumarin Dyes and 2,2′-Bis(2-chlorophenyl)-4,4′,5,5′-tetraphenyl-1,1′-bi- 1H-imidazole

Author keywords

[No Author keywords available]

Indexed keywords

COUMARIN DERIVATIVE; IMIDAZOLE DERIVATIVE; POLYMER;

EID: 0030760789     PISSN: 00092673     EISSN: None     Source Type: Journal    
DOI: 10.1246/bcsj.70.1659     Document Type: Article
Times cited : (26)

References (32)
  • 6
    • 85033152460 scopus 로고    scopus 로고
    • note
    • 14)
  • 7
    • 85033156936 scopus 로고    scopus 로고
    • note
    • 13c)
  • 15
    • 0000912035 scopus 로고
    • a) T. Hayashi and K. Maeda, Bull. Chem. Soc. Jpn., 33, 565 (1960); 35, 2057 (1962)
    • (1962) Bull. Chem. Soc. Jpn. , vol.35 , pp. 2057
  • 22
    • 85033135439 scopus 로고    scopus 로고
    • note
    • 2, see Ref. 4b, the triplet decay time KCD-J and KCD-DA, 10-15 μs, in a PMMA film because more than 50 μs by applying an oxygen barrier layer on the sample, suggesting that the triplet in a PMMA film was quenched by oxygen which penetrated into the film. Since the xenon lamp pulse for monitor light was about 100 μs, it was too short to analyse the triplet decay in the PMMA film sample with an oxygen barrier layer.
  • 23
    • 85033147829 scopus 로고    scopus 로고
    • note
    • q) remarkably reduced with ΔG higher than 0 eV, and almost reached to the diffusion controlled rate with AG lower than -0.867 eV. The fact supports the possibility of the electron-transfer quenching of the dyes by BI with the threshold of ΔG.
  • 25
    • 85033129724 scopus 로고    scopus 로고
    • note
    • As for the curve fitting for KCD-J in the presence of BI, we ignored the increase of base line due to the unknown transient product, which was formed from singlet sensitized decomposition of BI, because of the low absorption of the product less than 10% of total transient absorption at 600 nm.
  • 26
    • 85033142649 scopus 로고    scopus 로고
    • note
    • 00 is the excitation energy of the ketocoumarin singlets and triplets, and C, coulombic term, usually assumed to value ca. 0.1 eV for acetonitrile solvent.
  • 28
    • 85033134758 scopus 로고    scopus 로고
    • note
    • 7a)


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.