通过聚乙烯亚胺-b-聚乙二醇-b-聚乙烯亚胺共聚物的选择性穿线一锅法合成聚轮烷。
One-pot synthesis of a polyrotaxane via selective threading of a PEI-b-PEG-b-PEI copolymer.
作者信息
Choi Hak Soo, Ooya Tooru, Yui Nobuhiko
机构信息
School of Materials Science and the 21st Century COE Program, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan.
出版信息
Macromol Biosci. 2006 Jun 16;6(6):420-4. doi: 10.1002/mabi.200600024.
A functional polyrotaxane of a PEI-b-PEG-b-PEI copolymer is synthesized in aqueous solution in a one-pot sequence. To obtain a polyrotaxane with PEG-block-selective inclusion complexes, the solution pH of the polypseudorotaxane is lowered to 4.4 in the presence of 9-anthraldehyde (AN), which triggers the expulsion of the alpha-cyclodextrins (alpha-CDs) from the flank PEI chains. Synthetic strategy of a block-selective polyrotaxane between a PEI-b-PEG-b-PEI copolymer and alpha-cyclodextrins.
在水溶液中通过一锅法合成了聚乙二醇-b-聚环氧乙烷-b-聚乙二醇（PEI-b-PEG-b-PEI）共聚物的功能性聚轮烷。为了获得具有聚乙二醇嵌段选择性包合物的聚轮烷，在9-蒽醛（AN）存在下，将聚准轮烷的溶液pH值降至4.4，这会促使α-环糊精（α-CDs）从侧翼的聚环氧乙烷链中排出。聚乙二醇-b-聚环氧乙烷-b-聚乙二醇共聚物与α-环糊精之间的嵌段选择性聚轮烷的合成策略。
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