Preparation of Amphiphilic Polymer-Functionalized Carbon Nanotubes for Low-Protein-Adsorption Surfaces and Protein-Resistant Membranes

摘要

Multiwalled carbon nanotubes functionalized with poly(sulfone) (PSF) and polylsulfobetaine mechacrylate) (PSBMA) (MWNT-PSF/PSBMA) have been prepared through sequential atom transfer radical polymerization. The structureof MWNT-PSF/PSBMA hybrid has been characterized with FT1R. Raman spectroscopy, and high-resolution transmission electron microscopy Incorporation of PSBMA chains to MWNTs introduces amphiphilic and protein-resistant properties to MWNT-PSF/PSBMA Addition of 1 wt % MWNT-PSF/PSBMA to PSF films significantly improves their protein-resistant characteristic, as the composite films show a 4.4 % of protein adsorption compared to poly(styrene) Petri dishes. The PSF/MWNT-PSF/PSBMA composite has been applied to prepare antifouling ultrafiltration membranes for protein separation This work demonstrates an effective and convenient approach to prepare low-protein-adsorption surfaces and antiFouling membranes.