Journal of the American Chemical Society · 2002 · 316 citations · 6 references
Natural SciencesChemical EngineeringMaterials SciencePolymer ChemistryPolymer EngineeringPolymer MaterialsCellulose ChemistryPolymer FunctionalizationPolymer ProcessingPolymerization ChemistryPolymerization ProcessesAmbient Temperature EffectsAtom Transfer Radical PolymerizationCellulose FunctionalizationCellulose-based PolymersControlled Radical PolymerizationFibersGrafted Polymer LayersSize-exclusion Liquid Chromatography
Cellulose fibers have been successfully grafted with poly(methyl acrylate) using atom transfer radical polymerization, mediated by Me6-TREN and Cu(I)Br at ambient temperature. The initially hydrophilic cellulose was first modified by reacting the hydrozyl groups with 2-bromoisobutyryl bromide whereupon methyl acrylate was grafted from the surface. The resulting polymer-grafted papers were extremely hydrophobic, thetaa = 133 degrees . FT-IR analysis indicates that the amount of grafted polymer can be controlled by adding sacrificial initiator to the polymerizing system. Size exclusion chromatography of the bulk polymer revealed narrow polydispersities and a molecular weight corresponding to the ratio [M]:[I].
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