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Surface‐active properties of hydrophobized derivatives of lignosulfonates: Effect of structure of organosilicon modifier
Author(s) -
Telysheva G.,
Dizhbite T.,
Paegle E.,
Shapatin A.,
Demidov I.
Publication year - 2001
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1935
Subject(s) - lignosulfonates , organosilicon , oligomer , surface tension , chemistry , aqueous solution , solubility , polymer chemistry , organic chemistry , wetting , surface modification , chemical engineering , materials science , lignin , composite material , physics , engineering , quantum mechanics
An investigation of regularities of surface‐tension alterations in the aqueous solutions of lignosulfonate and aluminum‐containing organosilicon oligomer (olygoheterosiloxanolates) reaction mixtures revealed that modification with oligomers can be used for the regulation of the surface activity of lignosulfonates. High surface activity not only in acidic, but also in neutral and alkali media, is achieved using oligomers which consist of ethylsesquioxane and diethylsiloxane links. In this case, increasing hydrophobicity compensates the negative effects (increase of solubility and the Coulomb repulsion) of ionization of lignosulfonate acidic groups. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 1013–1020, 2001