A one-pot method for the preparation of mixed matrix polyvinylidene fluoride membranes with in situ synthesized and PEGylated polyethyleneimine particles

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In this article, we report a one-pot method for the preparation of mixed matrix polyvinylidene fluoride (PVDF) membranes with in situ synthesized and PEGylated polyethyleneimine (PEI) particles. The key feature of our new membrane preparation route is the in situ synthesis and PEGylation of PEI particles in the dope solutions prior to membrane casting using epichlorohydrin (ECH) and poly(ethylene glycol) diglycidyl ether (PEGDE) as crosslinker and PEGylating reagent, respectively. Using non-solvent induced phase separation (NIPS), we successfully prepared a new family of mixed matrix PVDF membranes with (i) average pore diameters of 16-24 nm, (ii) high loadings of PEGylatecl PEl particles (35-57 wt%) and (iii) uniform distributions of particles with average diameters ranging from 600 am to 3.6 mu m. Preliminary experiments show that our new mixed matrix PVDF membranes with in situ synthesized and PEGylated PEl particles can serve as fouling resistant ultrafiltration membranes for microalgae recovery from culture media of relevance to biofuel production.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2015-01
Language
English
Article Type
Article
Keywords

MICROFILTRATION MEMBRANE; GAS-SEPARATION; ULTRAFILTRATION; POLYMER; SYSTEM; HYDROPHILICITY; IMMOBILIZATION; PERFORMANCE; TECHNOLOGY; MICROALGAE

Citation

JOURNAL OF MEMBRANE SCIENCE, v.474, pp.277 - 287

ISSN
0376-7388
DOI
10.1016/j.memsci.2014.00.044
URI
http://hdl.handle.net/10203/194175
Appears in Collection
CE-Journal Papers(저널논문)EEW-Journal Papers(저널논문)
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