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Improvement in the light fastness of dyed and pigmented materials. 3 – The effect of antioxidants on the photostabilisation of dyes and pigments in some polymeric media
Author(s) -
Kuramoto Nobuhiro
Publication year - 1990
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1990.tb01252.x
Subject(s) - photodegradation , scavenger , chemistry , singlet oxygen , nickel , polyethylene , pigment , quenching (fluorescence) , antioxidant , solvent , nuclear chemistry , photochemistry , polymer chemistry , organic chemistry , oxygen , catalysis , physics , photocatalysis , quantum mechanics , fluorescence
The effect of some added antioxidants on the photostabilisation of a quinophthalone dye (C. I. Solvent Yellow 33) and C. I. Pigment Red 38 in polymeric media such as chlorosulphonated polyethylene (CSM rubber), poly(vinyl chloride) (PVC) and polyethylene has been examined. The effects varied according to the type of antioxidant used. For example, the addition of 2, 6–di–t–butyl–4–methylphenol, an effective radical scavenger, afforded little protection against photodegradation, whilst the singlet oxygen quenching of antioxidants such as bis(l, 2–diaryl or dialkyl–l, 2–ethylenedithiolato) nickel, nickel dialkyldithiocar–bamate, nickel bis(mesitylenesulphonate), and nickel (N–n–dodecylsalicylaldimine) conferred improved resistance towards photodegradation.