Block-selected molecular recognition and formation of polypseudorotaxanes between poly(propylene oxide)-poly (ethylene oxide)poly(propylene oxide) triblock copolymers and α-cyclodextrin

被引:83
作者
Li, J
Ni, XP
Leong, K
机构
[1] Inst Mat Res & Engn, Singapore 117602, Singapore
[2] Natl Univ Singapore, Fac Engn, Div Bioengn, Singapore 117576, Singapore
[3] Johns Hopkins Univ, Dept Biomed Engn, Baltimore, MD 21205 USA
关键词
D O I
10.1002/anie.200390055
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Although a poly(propylene oxide) (PPO) chain was previously thought to be impenetrable to α-cyclodextrin, the middle poly(ethylene oxide) (PEO) block of PPO-PEO-PPO triblock copolymers can be selectively recognized and included by α-cyclodextrin to form polypseudorotaxanes (see schematic representation), even though it is flanked by two PPO blocks.
引用
收藏
页码:69 / 72
页数:4
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