Journal
MACROMOLECULES
Volume 44, Issue 18, Pages 7242-7252Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ma201331f
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Funding
- regional development agency One North East
- EPSRC [EP/G066507/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G066507/1] Funding Source: researchfish
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Polymeric nanoparticles were prepared through the chain collapse of linear polymers driven by the formation of dynamic covalent bonds. Linear chains of poly(vinylbenzaldehyde) were intramolecularly cross-linked through the formation of dynamic covalent acylhydrazone bonds with a bis-hydrazide cross-linker. The cross-linking density was shown to be controlled by the amount of crosslinker used. The resulting single polymer chain nanoparticles were then adorned through reaction of their remaining aldehyde units with a series of monoacyl hydrazides or alkoxyamines. Alternatively, the linear polymer chains could be fully adorned by reaction of their aldehyde units with the monoacyl hydrazides and then intramolecularly cross-linked through exchange reactions with the bis-hydrazide cross-linker. Both approaches proved effective routes to prepare single-chain polymer nanoparticles possessing high functional density.
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