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Effect of residual copper on stability of molecular brushes prepared by atom transfer radical polymerization |
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| Authors: | Alper Nese Sergei S. Sheiko Krzysztof Matyjaszewski |
| Affiliation: | aDepartment of Chemistry, Center for Macromolecular Engineering, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA 15213, USA;bDepartment of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3290, USA |
| Abstract: | Effect of residual copper on stability of molecular brushes with poly(n-butyl acrylate) (PBA) side chains was studied. The brushes were prepared by atom transfer radical polymerization (ATRP) using the grafting-from approach. Although the copper concentration was decreased down to below ten ppm levels by passing through alumina column, further removal was required to prevent crosslinking reactions. Further removal was performed by dialysis or precipitation. |
| Keywords: | ATRP Molecular brushes Comb Bottle-brushes Purification |
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