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Polymer purification through solvent addition: Physical implications and modeling of separation units
Author(s) -
Carrà S.,
Morbidelli M.,
Santacesaria E.,
Niederjaufner G.
Publication year - 1981
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.1981.070260507
Subject(s) - solvent , polymer , impurity , diffusion , materials science , separation (statistics) , chemical engineering , chromatography , chemistry , organic chemistry , thermodynamics , computer science , physics , machine learning , engineering
Addition of solvents may ease removal of small amounts of volatile residues from polymeric materials. Enhanced separation thus obtained is due to the influence of the solvent on the vaporpolymer–liquid equilibria and to its influence on the increase of the diffusion rate of the impurities. The problem has been examined through a mathematical model describing the behavior of the units employed in the purification. Examples of applications are illustrated in which prediction of the behavior of purification units are performed from small‐scale apparatus experiments.