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Transient absorption spectra of 2-hydroxybenzophenone photostabilizers

โœ Scribed by Charles Merritt; Gary W. Scott; Amitava Gupta; Andre Yavrouian

Book ID
103015675
Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
410 KB
Volume
69
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

Transient absorption spectra (400-600 nm) of Z-hydrouybenzophenone and the methyl methacryIat+ copolymer of 2hydroxy, 3allyl. 4,4'-dunetho\ybenzophenone Foilowmg 355 nm evzltatlon (7-480 ps delay) are reported. A shortaved, 435 nm transient (T = 10 ps m CHzCl2) For both molecules IS assIgned to the lowest cxated smglet before mtemal proton transfer. Weaker. broad T-T absorption 1s observed after 480 ps.

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