scholarly journals Enhanced separation and antifouling performance of reverse osmosis membrane incorporated with carbon nanotubes functionalized by atom transfer radical polymerization

RSC Advances ◽  
2017 ◽  
Vol 7 (74) ◽  
pp. 46969-46979 ◽  
Author(s):  
Man Zhao ◽  
Shancan Fu ◽  
Huifeng Zhang ◽  
Hai Huang ◽  
Yangyang Wei ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Reverse Osmosis ◽  
Atom Transfer ◽  
Reverse Osmosis Membrane ◽  
Elemental Mapping ◽  
Mixed Matrix ◽  
Functionalized Mwcnts

TEM and HAADF-STEM-EDS merged elemental mapping images of functionalized MWCNTs, and antifouling mechanism of mixed-matrix RO membranes.

Water-Dispersible Carbon Nanotubes for Aqueous Surface-Initiated Atom Transfer Radical Polymerization

2008 ◽  
Vol 8 (11) ◽  
pp. 5858-5863
Author(s):  
F. J. Xu ◽  
J. Li ◽  
F. Su ◽  
X. S. Zhao ◽  
E. T. Kang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Covalent Immobilization ◽  
Water Soluble ◽  
Atom Transfer ◽  
Multiwalled Carbon ◽  
One Pot ◽  
Water Soluble Polymer ◽  
Good Dispersion

A simple one-pot process was developed for the covalent immobilization of atom transfer radical polymerization (ATRP) initiators with quaternized triethylamine moieties on the carboxyl-functionalized multiwalled carbon nanotubes (MWCNTs). The initiator-coupled MWCNTs exhibited good dispersion in water and could be used directly to prepare water-dispersion of polymer-MWCNT hybrids, such as stimuli-responsive poly(N-isopropyl acrylamide)-MWCNT hybrids, via surface-initiated ATRP of N-isopropylacrylamide in an aqueous medium. The present one-pot synthesis of the ATRP initiator-immobilized MWCNTs with good dispersion in water provides an alternative route to the direct preparation of water-soluble polymer-MWCNT hybrids in aqueous media.

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