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Asymmetric Membranes: Preparation and Applications
Author(s) -
Saier H.D.,
Strathmann H.
Publication year - 1975
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.197504521
Subject(s) - membrane , semipermeable membrane , filtration (mathematics) , polymer , materials science , hydrostatic pressure , gas separation , separation (statistics) , chemical engineering , chemistry , computer science , engineering , composite material , thermodynamics , mathematics , physics , biochemistry , statistics , machine learning
Abstract The separation of molecular mixtures by semipermeable membranes under the driving force of hydrostatic pressure has assumed major importance in recent years. Among other factors the development of membranes with asymmetric structure which, while having the same separating properties, afford a filtration output many times greater than that of the previously known symmetrical membranes, was decisive for this method. In the present progress report the structures of asymmetric membranes are discussed, as well as their preparation from various polymers and their application to the separation of molecular mixtures.