title: NEXAFS study of multi-walled carbon nanotubes functionalization with sulfonated poly(ether ether ketone) chains.
abstract: Functionalization of multi-walled carbon nanotubes (MWNTs) surface by sulfonated poly (ether ether ketone) SPEEK chains using a direct attachment reaction was investigated. A two step method was performed. MWNTs were oxidized by a nitric acid treatment to generate carboxyl groups on their surface. The grafting reaction of sulfonated groups of SPEEK with carboxyl groups present on the surface of oxidized MWNTs readily proceeds by using hexane diamine as an interlinking molecule. Transmission electron microscopy (TEM) shows that tubes are wrapped by polymer chains. Near edge X-ray absorption fine structure spectroscopy (NEXAFS) at the C K-edge, O K-edge, and N K-edge and X-ray photoelectron spectroscopy (XPS) were used to give evidence of covalent functionalization of MWNTs by SPEEK macromolecules.
authors.affiliation: Laboratoire des Colloïdes Verres et Nanomatériaux, Université Montpellier II, cc026, Place Eugène Bataillon, 34095 Montpellier, France.
authors.forename: M R
authors.initials: MR
authors.lastname: Babaa
authors.forename: J L
authors.initials: JL
authors.lastname: Bantignies
authors.forename: L
authors.initials: L
authors.lastname: Alvarez
authors.forename: P
authors.initials: P
authors.lastname: Parent
authors.forename: F
authors.initials: F
authors.lastname: Le Normand
authors.forename: M
authors.initials: M
authors.lastname: Gulas
authors.forename: J
authors.initials: J
authors.lastname: Mane Mane
authors.forename: P
authors.initials: P
authors.lastname: Poncharal
authors.forename: B P
authors.initials: BP
authors.lastname: Doyle
mesh_terms: D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D013450:Sulfones / Q000737:chemistry*; D013499:Surface Properties; D014961:X-Ray Diffraction / Q000379:methods*
chemical_list: D046911:Macromolecular Substances; D037742:Nanotubes, Carbon; D011108:Polymers; D013450:Sulfones; C022840:polyether sulfone