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Interactions between polysaccharide polymer thickener and bifunctional bireactive dye in the presence of nonionic surfactants. Part 2, Investigation of interactions using SEC methodKokol, VanjaSize exclusion chromatography used together with RI- and UV/VIS-detectors has proved to be a successful alternative method for identifying reaction products and complex formations between the ... bifunctional and bivinylsulphonyl reactive dye, polysaccharide guar gum thickener and nonionic surfactant in a printing paste. It is shown that nonionic surfactants prevent undesired chemical interactions between the reactive dye and the guar gum thickener due to physical interactions (H-bonds, van der Waals forces) and chemical ether bonds between the surfactant and the guar gum thickener, and in smaller quantities between the surfactant and the reactive dye. The efficacy of surfactants decreases in direct proportion with the diminishing hydrophylic part (▫$C_18EO_20>C_18EO_10>C_18EO_4$▫) and with the growing length of the hydrophobic part (▫$C_16EO_10>C_16EO_10$▫) of the molecule. The efficacy of the surfactant also increases with the increasing concentration of the surfactant and with the increasing carboxymethylation degree of the polymer. The interaction between the reactive dye and guar gum are the least in the system containing the surfactant ▫$C_18EO_10$▫ and the thickener CMG=1.1.Source: Carbohydrate polymers. - ISSN 0144-8617 (50, 2002, str. 237-247)Type of material - article, component partPublish date - 2002Language - englishCOBISS.SI-ID - 7563798
Author
Kokol, Vanja
Other authors
Drev, Maja
Topics
tiskanje tekstilij |
tiskarska gošča |
gostila |
polisaharidi |
reaktivna barvila |
neionske površinsko aktivne snovi |
kemijske reakcije |
izklučitvena kromatografija |
textile printing |
printing paste |
thickeners |
polysaccharides |
reactive dyes |
nonionic surfactants |
chemical reactions |
size exclusion chromatography
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