One-pot synthesis of a polyrotaxane via selective threading of a PEI-b-PEG-b-PEI copolymer |
| |
| Authors: | Choi Hak Soo Ooya Tooru Yui Nobuhiko |
| |
| Institution: | 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. |
| |
| Abstract: | 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. |
| |
| Keywords: | block copolymers cyclodextrin polyrotaxanes supramolecular structures |
| 本文献已被 PubMed 等数据库收录！ |
|
