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Dyeing of Poly(acrylonitrile) Fibers with Azatrimethinecyanines
Author(s) -
Voltz Jacques
Publication year - 1962
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.196205321
Subject(s) - dyeing , acrylonitrile , nitrogen , polymer chemistry , materials science , chain (unit) , chemistry , composite material , organic chemistry , polymer , copolymer , physics , astronomy
Like all basic dyes, azatrimethinecyanines possess a good dyeing affinity for acrylic fibers. Compounds with isolated nitrogen atoms in the trimethine chain show insufficient light fastness, whereas good to excellent fastness to light is displayed by compounds having neighboring nitrogen atoms in the chain. Thus, a working hypothesis stating that the light fastness of trimethinecyanines on acrylic fibers is improved by progressive replacement of methine groups by nitrogen atoms has been partially confirmed.