title: Reduction-Responsive Sheddable Carbon Nanotubes Dispersed in Aqueous Solution.
abstract: A new approach to stabilize carbon nanotubes (CNTs) in aqueous solution with a reduction-responsive water-soluble polymer is reported. The novel polymer synthesized by a controlled radical polymerization is functionalized with pendant pyrene groups capable of adhering to the surface of CNTs through π-π noncovalent interactions, and labeled with disulfide linkages to exhibit reduction-responsive cleavage. Upon the cleavage of junction disulfide linkages in a reducing environment, water-soluble polymers are shed, retaining clean CNT surfaces for electrochemical catalytic reactions.
authors.affiliation: Department of Chemistry and Biochemistry, Centre for NanoScience Research, Concordia University, Montreal, Quebec, H4B 1R6, Canada.
authors.forename: So Young
authors.initials: SY
authors.lastname: An
authors.affiliation: Institut National de la Recherche Scientifique - Énergie Matériaux et Télécommunications, Varennes, QC, J3X 1S2, Canada.|Centre Québécois sur les Matériaux Fonctionnels (CQMF), Pavillon Alexandre-Vachon-2634, Université Laval, Québec, Canada.
authors.forename: Shuhui
authors.initials: S
authors.lastname: Sun
authors.affiliation: Department of Chemistry and Biochemistry, Centre for NanoScience Research, Concordia University, Montreal, Quebec, H4B 1R6, Canada.|Centre Québécois sur les Matériaux Fonctionnels (CQMF), Pavillon Alexandre-Vachon-2634, Université Laval, Québec, Canada.
authors.forename: Jung Kwon
authors.initials: JK
authors.lastname: Oh
mesh_terms: D004220:Disulfides / Q000737:chemistry; D037742:Nanotubes, Carbon / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011721:Pyrenes / Q000737:chemistry; D012995:Solubility; D013438:Sulfhydryl Compounds / Q000737:chemistry; D014867:Water
chemical_list: D004220:Disulfides; D037742:Nanotubes, Carbon; D011108:Polymers; D011721:Pyrenes; D013438:Sulfhydryl Compounds; D014867:Water; C030984:pyrene
keywords: aqueous dispersion; atom transfer radical polymerization; carbon nanotubes; reduction-responsive degradation; thiol-disulfide chemistry