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THE EIGHTH GEORGE DOUGLAS LECTURE The Dye and the Substrate: The Role of Hydrophobic Bonding in Dyeing Processes
Author(s) -
ZOLLINGER H.
Publication year - 1965
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.1478-4408.1965.tb02672.x
Subject(s) - dyeing , cationic polymerization , van der waals force , adsorption , wool , chemistry , polymer chemistry , hydrophobic effect , polymer science , substrate (aquarium) , chemical engineering , organic chemistry , materials science , molecule , composite material , oceanography , engineering , geology
Held at the Institute of Technology, Bradford, on 3rd March 1965, the President of the Society, Mr J. Barritt, in the chair In addition to the two well–known types of dye–fibre interaction in the adsorption of anionic dyes by wool, silk, and polyamides [coulombic attraction of dye anions to cationic groups on the fibres and van der Waals' (London) forces], contributions by hydrophobic bonding are considered. Parameters which correspond to standard enthalpies and standard entropies were measured for the adsorption of three suitable acid dyes on wool. The results indicate the hydrophobic–bonding contributions of an aliphatic side–chain. Their detection is, however, difficult because of additional phenomena (dye–dye aggregation equilibria in solution). The thermodynamic evaluation of dyeing isotherms is critically reviewed.