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Synthesis and Performance of PP Microfiltration Membranes Grafted with Polymer Layers of Different Structure
Author(s) -
Yang Hu,
Ulbricht Mathias
Publication year - 2008
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200800006
Subject(s) - membrane , materials science , microfiltration , permeation , monomer , adsorption , chemical engineering , grafting , polymer , polymer chemistry , protein adsorption , chromatography , composite material , chemistry , organic chemistry , biochemistry , engineering
Abstract Reproducible and controllable hydrophilic layers were grafted on macroporous PP membranes by surface initiated grafting. Two methods were adopted, i.e., through adsorption of or entrapping the photo‐initiator on the membrane surface. The latter method yielded longer grafted chains under otherwise identical conditions. Depending on monomer solution composition, brush layers or network‐like structures were grafted onto the entire membrane surface without significant loss of water flux. The influence of the structure of grafted layers on water permeation, protein adsorption, and protein microfiltration fluxes was investigated. It was found that membranes grafted with network‐like structures have the best performance.