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Investigations of the phenomena of coacervation
Author(s) -
Turska E.,
Utracki L.
Publication year - 1959
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.1959.070020407
Subject(s) - coacervate , miscibility , polymer , phase (matter) , materials science , polymer chemistry , solubility , polymer science , chemical engineering , chemistry , chromatography , organic chemistry , composite material , engineering
The object of the work was to ascertain the characteristic features which could provide a basis for distinguishing between the formation of the coacervate and that of a new liquid phase resulting from the limited miscibility of components. Various multicomponent systems containing the polymer were examined, and as a model we examined a system unable to form coacervates in which the polymer was replaced by a small‐molecule substance of a similar solubility. Measurements of the changes in the volumes of the liquid phases were carried out and the polymer content in the particular phases was determined. It was ascertained that the characteristic feature for the coacervate is a maximum on the curve which indicates the dependence of the volume of the phase richer in polymer on the quantity of the nonsolvent used. The polyethylene terephthalate coacervate was obtained and certain new systems containing polyamides were proved to be able to form coacervates.