| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5210643 | Reactive and Functional Polymers | 2010 | 7 Pages |
Abstract
Carboxyl-functionalized cross linked polymeric nanocapsules (PAA-CPS) with pH-responsive poly(acrylic acid) (PAA) brushes on the inner wall of the crosslinked polystyrene (CPS) shells have been prepared by the template-polymerization approach via combination of surface-initiated atom transfer radical polymerization (SI-ATRP) and ultraviolet-irradiated crosslinking techniques. The hollow structure of the crosslinked nanocapsules with an inner diameter of about 30-40Â nm was confirmed by transmission electron microscopy (TEM). The adsorption experiments showed that the PAA-CPS nanocapsules possess a higher adsorption capacity towards the basic dye methylene blue (MB) than the PtBA-CPS nanocapsules. Furthermore, the MB-loaded PAA-CPS nanocapsules release the dye more rapidly in acidic medium than in a neutral medium.
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Authors
Bin Mu, Peng Liu, Qiaosheng Pu,