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Covalently functionalized carbon nanotubes as macroinitiators for radical polymerization
Author(s) -
Papagelis K.,
Kalyva M.,
Tasis D.,
Parthenios J.,
Siokou A.,
Galiotis C.
Publication year - 2007
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200776159
Subject(s) - carbon nanotube , polymerization , covalent bond , raman spectroscopy , polymer chemistry , acrylic acid , materials science , grafting , surface modification , aqueous solution , x ray photoelectron spectroscopy , radical polymerization , chemical engineering , selective chemistry of single walled nanotubes , chemistry , organic chemistry , nanotechnology , nanotube , polymer , copolymer , optical properties of carbon nanotubes , physics , engineering , optics
Single‐walled carbon nanotubes were functionalized along their sidewalls with hydroxyalkyl groups using a radical addition scheme. These moieties were found to be active in the polymerization of acrylic acid from the surface of the nanotubes by a redox radical mechanism. The resulting polymerized nanotubes were analyzed by UV–Vis, XPS, Raman and SEM techniques. The composite material was found to be soluble in aqueous media (pH > 5) and polar organic solvents. The reported grafting technique is expected to be suitable for industrial production of modified carbon nanotubes. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)