期刊
MACROMOLECULES
卷 47, 期 6, 页码 1914-1921出版社
AMER CHEMICAL SOC
DOI: 10.1021/ma500006j
关键词
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资金
- National Natural Science Foundation of China [51133001, 21374018]
- National 863 Foundation
- Science and Technology Foundation of Ministry of Education of China [20110071130002]
- Science and Technology Foundation of Shanghai [12 nm0503600, 13JC1407800]
Polymeric nanocapsules with cross-linked poly(2-hydroxyethyl methacrylate) and polystyrene blocks (PS-b-(c-PHEMA) nanocapsules) were synthesized via the surface initiated atom transfer radical polymerization and atom transfer nitroxide radical coupling reactions. With alkoxyamine bonds as the cross-linkers, the nanocapsules exhibited unique responsive behavior: When PBS and oxygen existed, these nanocapsules were broken down into pieces, which self-assembled into nanocapsules again when ascorbic acid was added. When PBS, ascorbic acid, and oxygen existed together, these nanocapsules self-assembled into larger capsules. However, both the nanocapsules and capsules would finally disintegrate into pieces as the time extended.
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