期刊
MACROMOLECULES
卷 47, 期 3, 页码 916-921出版社
AMER CHEMICAL SOC
DOI: 10.1021/ma4025619
关键词
-
资金
- National Natural Science Foundation of China [NSFC21090352, 21104065, 21274125, 21104068]
- Public Programs of Zhejiang Province [2011C21055]
Novel classes of jellyfish-shaped amphiphilic dendrimers composed of 7 hydrophilic poly(ethylene glycol) (PEG) arms and 14 hydrophobic polyester dendrons with beta-cyclodextrin (beta CD) as the core molecule were synthesized by a facile method. Seven PEG chains were first conjugated to the C-6 positions of native beta CD. Subsequently, dendritic polyester architectures were constructed from the remaining 14 secondary hydroxyl groups at C-2 and C-3 positions of the beta CD moiety, resulting in jellyfish-shaped amphiphilic dendrimers of different generations (7PEG-beta CD-Gx) with well-defined molecular structures. The amphiphilic dendrimers self-assembled into different morphologies dependent upon the hydrophilic fraction of the dendrimers, and very surprisingly, the fourth-generation dendrimers consisting of only several percent of PEG could form aggregates with extremely narrow size distributions.
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