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Block-Selective Polypseudorotaxane Formation in PEI- b -PEG- b -PEI Copolymers via pH Variation

✍ Scribed by Lee, Sang Cheon; Choi, Hak Soo; Ooya, Tooru; Yui, Nobuhiko

Book ID: 124056338
Publisher: American Chemical Society
Year: 2004
Tongue: English
Weight: 174 KB
Volume: 37
Category: Article
ISSN: 0024-9297
DOI: 10.1021/ma048666r

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## Abstract **Summary:** 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