A significant impact of host-guest stoichiometry on the extensibility of polyrotaxane gels

Modification of the guest polymer ends efficiently and substantially decreases the density of the threaded rings. The minimized ring density drastically facilitates chain sliding through the cross-links in polyrotaxane gels. This molecular design is like regulating the "pressure" of the ri...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2015-01, Vol.51 (90), p.16180-16183
Main Authors: Kato, Kazuaki, Okabe, Yoshinori, Okazumi, Yuya, Ito, Kohzo
Format: Article
Language:English
Subjects:
Chains (polymeric)
Crosslinking
Density
Extensibility
Gels
Sliding
Stoichiometry
Threaded
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Summary:Modification of the guest polymer ends efficiently and substantially decreases the density of the threaded rings. The minimized ring density drastically facilitates chain sliding through the cross-links in polyrotaxane gels. This molecular design is like regulating the "pressure" of the rings confined in the interlocked architecture, which counteracts the sliding.
ISSN:1359-7345
1364-548X
DOI:10.1039/c5cc07122d