Premium
New hydrophilic polypropylene membranes; fabrication and evaluation
Author(s) -
Chung T. C.,
Lee S. H.
Publication year - 1997
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/(sici)1097-4628(19970418)64:3<567::aid-app13>3.0.co;2-v
Subject(s) - membrane , polypropylene , biofouling , chemical engineering , materials science , ultrafiltration (renal) , polymer chemistry , polymer , chemistry , composite material , chromatography , biochemistry , engineering
This article discusses a new method to prepare polypropylene membrane that has hydrophilic surfaces and asymmetric porous structure. This membrane is based on a newly developed hydroxylated polypropylene (PP‐OH), which has a “brushlike” microstructure, high molecular weight, high melting point, and relatively high concentration of hydroxy groups. Under the leaching process conditions, various asymmetric hydrophilic PP/PP‐OH membranes are prepared with controllable pore structures. The PP‐OH polymer becomes the surface modifier of asymmetric PP membrane with flexible functional groups located on the membrane surfaces, including pore surfaces. This new hydrophilic PP/PP‐OH membrane is useful in ultrafiltration, not only offering good selectivity and flux but also showing excellence in antifouling property. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 567–575, 1997