title: Self-assembly in aqueous solution of amphiphilic graft copolymers from oxidized carboxymethylcellulose.
abstract: A series of oxidized carboxymethylcellulose-graft-poly(ethylene glycol)-dodecylamine (OCMC-g-PEG-DDA) was prepared by using an appositely prepared PEG with terminal amino groups and different amounts of DDA. The nanoaggregates formed in aqueous solution were characterized by surface tension measurements, fluorescence spectroscopy, dynamic light scattering (DLS) and scanning electron microscopies (SEM and TEM). The micelles showed narrow hydrodynamic size distributions and diameters varying from 163 to 193nm depending on the ratio of DDA to PEG chains. The DDA content in the graft copolymers also affected the core-shell interfacial compactness.
authors.affiliation: Cuban Research Institute of Sugar Cane, Havana, Cuba; Department of Chemistry and Environmental Science, Institute of Biosciences, Humanities, and Exact Science (IBILCE), San Paulo University (UNESP), San Paulo, SP, Brazil; Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, A Coruña, Spain. Electronic address: bordallolopez@gmail.com.
authors.forename: Eduardo
authors.initials: E
authors.lastname: Bordallo
authors.affiliation: Faculty of Chemistry, Havana University, Havana, Cuba.
authors.forename: Jacques
authors.initials: J
authors.lastname: Rieumont
authors.affiliation: Department of Chemistry and Environmental Science, Institute of Biosciences, Humanities, and Exact Science (IBILCE), San Paulo University (UNESP), San Paulo, SP, Brazil.
authors.forename: Marcio José
authors.initials: MJ
authors.lastname: Tiera
authors.affiliation: Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, A Coruña, Spain.
authors.forename: Manuel
authors.initials: M
authors.lastname: Gómez
authors.affiliation: Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, A Coruña, Spain. Electronic address: massimo.lazzari@usc.es.
authors.forename: Massimo
authors.initials: M
authors.lastname: Lazzari
mesh_terms: D000588:Amines / Q000737:chemistry; D002266:Carboxymethylcellulose Sodium / Q000031:analogs & derivatives* / Q000737:chemistry; D008823:Micelles; D008854:Microscopy, Electron; D011092:Polyethylene Glycols / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D013500:Surface Tension; D013501:Surface-Active Agents / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D000588:Amines; D008823:Micelles; D013501:Surface-Active Agents; D014867:Water; D011092:Polyethylene Glycols; D002266:Carboxymethylcellulose Sodium; C003935:dodecylamine
keywords: Amphiphilic graft copolymer; Carboxymethylcellulose; Fluorescence; Micellization; PEGylation