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Polysulfone-graft-poly(ethylene glycol) graft copolymers for surface modification of polysulfone membranes

Paper ID Volume ID Publish Year Pages File Format Full-Text
11657 751 2006 10 PDF Available
Title
Polysulfone-graft-poly(ethylene glycol) graft copolymers for surface modification of polysulfone membranes
Abstract

Amphiphilic graft copolymers having polysulfone (PSf) backbones and poly(ethylene glycol) (PEG) side chains were synthesized via reaction of an alkoxide formed from PEG and a base (sodium hydride) with chloromethylated polysulfone. The resulting polysulfone-graft-poly(ethylene glycol), PSf-g-PEG, materials were hydrophilic but water insoluble, rendering them potentially useful as biomaterial coatings. PSf-g-PEG films exhibited high resistance to protein adsorption and cell attachment. When used as an additive in PSf membranes prepared by immersion precipitation, the graft copolymer preferentially segregates to the membrane surface, delivering enhanced wettability, porosity and protein resistance compared to unmodified PSf membranes. The surface properties of PSf-g-PEG modified membranes render them desirable candidates for hemodialysis.

Keywords
Polysulfone; Polyethylene glycol; Surface modification; Protein resistance; Membrane; Dialysis
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Polysulfone-graft-poly(ethylene glycol) graft copolymers for surface modification of polysulfone membranes
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 27, Issue 6, February 2006, Pages 856–865
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
Online Support
Any Questions? feel free to contact us