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Influence of Polar Groups on the Hydrophile—Lipophile Balance of Non‐ionic Compounds
Author(s) -
Schönfeldt N.,
Almeoth U.
Publication year - 1961
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.1478-4408.1961.tb02432.x
Subject(s) - ethylene oxide , chemistry , solubility , alcohol , ethylene , chloride , oxide , organic chemistry , inorganic chemistry , catalysis , polymer , copolymer
Compounds containing an oleyl radical and the same number of ethylene oxide units but different polar groups differ in their solubility in water and in their hydrophile‐lipophile balance. A comparison was made by determining the cloud points in 10% sodium chloride solution and in dioxan‐water, as well as by means of the water numbers. The oleic acid—polyglyeol esters have the lowest solubility in water, because of the presence of diesters. The oleyl alcohol adducts are, at the same ethylene oxide chain length, probably three ethylene oxide units less hydrophilio than the oleylamine adducts. The solubilising power of a carboxyl group appears to be equal to that of a hydroxyl group and to that of three ethylene oxide groups. The hydrophilic character of an arnine group is greater and is approximately equal to that of four ethylene oxide units.