STUDIES ON PHOTOFADING AND STABLE FREE-RADICAL FORMATION IN REACTIVE DYED CELLULOSIC SYSTEMS UNDER THEIR EXPOSURE TO LIGHT

Authors
REMI E HORVATH O VIG A ROCKENBAUER A KORECZ L ARANYOSI P RUSZNAK I
Citation
E. Remi et al., STUDIES ON PHOTOFADING AND STABLE FREE-RADICAL FORMATION IN REACTIVE DYED CELLULOSIC SYSTEMS UNDER THEIR EXPOSURE TO LIGHT, Radiation physics and chemistry, 47(3), 1996, pp. 461-463
Citations number
9
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Radiation physics and chemistry → ACNP
ISSN journal
0969806X
Volume
47
Issue
3
Year of publication
1996
Pages
461 - 463
Database
ISI
SICI code
0969-806X(1996)47:3<461:SOPASF>2.0.ZU;2-9
Abstract
In light exposed systems of cotton and C.I. Reactive Red 3, C.I. React ive Black 5 and C.I. Direct Blue 78 azo dyes, respectively, generated stable free radicals could be detected. The observed hyperfine splitti ng of ESR spectra suggest the free radical are formed in the chromopho re. Based upon the calculated g-values the location of the generated u npaired electron could be assumed on one of the C atoms of the dye mol ecule.