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Polyrotaxanes Created by End-capping Polypseudorotaxanes Self-assembled from β-CDs with Distal Azide Terminated PHEMA Using Propargylamine Mono-substituted β-CDs

Abstract

When a distal azide terminated PHEMA underwent the aqueous CuAAC with propargylamine monosubstituted β-CDs (PA-β-CDs), a distal β-CD end-capped PHEMA was invariably generated. However, when it was self-assembled with a varying amount of β-CDs in water followed by the in situ CuAAC with an increasing feed molar ratio of PA-β-CDs, linear polyrotaxanes (PRs) or a mixture of linear and hyperbranched PRs were yielded. Consequently β-CDs enable to self-assemble with an obviously unfitting PHEMA, and those entrapped β-CDs further promote part of PA-β-CDs threaded onto the main axle to give hyperbranched PRs after the click reaction.

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Publication details

The article was accepted on 28 Nov 2019 and first published on 29 Nov 2019


Article type: Communication
DOI: 10.1039/C9PY01619H
Polym. Chem., 2019, Accepted Manuscript

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    Polyrotaxanes Created by End-capping Polypseudorotaxanes Self-assembled from β-CDs with Distal Azide Terminated PHEMA Using Propargylamine Mono-substituted β-CDs

    Z. Feng, M. Gao, H. Lu, R. Song, L. Ye and A. Zhang, Polym. Chem., 2019, Accepted Manuscript , DOI: 10.1039/C9PY01619H

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