期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 131, 期 4, 页码 1495-1501出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja807462e
关键词
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资金
- Royal Society
- EPSRC [EP/C511794/1]
- Unilever
- University of Liverpool
- Engineering and Physical Sciences Research Council [EP/C511794/1] Funding Source: researchfish
Well-defined dumbbell and tripartite organic nanoparticles (30-60 nm) were produced via a one-pot direct synthesis of branched amphiphilic block copolymers, avoiding the need for postsynthesis self-assembly steps. We show the mechanism of dumbbell formation is largely a concerted process of particle growth during polymerization, although data suggest that particle-particle linking also occurs, particularly at higher monomer conversions. Dumbbell particles formed using a disulfide bifunctional initiator lead to cleavable structures, underlining the role of initiator functionality in shape control and the potential for functionality placement. Trifunctional initiators allow the direct one-pot synthesis of tripartite clover-leaf shaped nanoparticles which would be difficult to achieve through conventional synthesis/self-assembly/cross-linking strategies.
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