Stimuli-responsive rotaxane-branched dendronized polymers with tunable thermal and rheological properties

Yu Zhu, Hanqiu Jiang, Weiwei Wu, Xiao-Qin Xu, Xu-Qing Wang (), Wei-Jian Li, Wei-Tao Xu, GengXin Liu, Yubin Ke, Wei Wang () and Hai-Bo Yang ()
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Yu Zhu: East China Normal University
Hanqiu Jiang: Spallation Neutron Source Science Center
Weiwei Wu: Donghua University
Xiao-Qin Xu: East China Normal University
Xu-Qing Wang: East China Normal University
Wei-Jian Li: East China Normal University
Wei-Tao Xu: East China Normal University
GengXin Liu: Donghua University
Yubin Ke: Spallation Neutron Source Science Center
Wei Wang: East China Normal University
Hai-Bo Yang: East China Normal University

Nature Communications, 2023, vol. 14, issue 1, 1-9

Abstract: Abstract Aiming at the creation of polymers with attractive dynamic properties, herein, rotaxane-branched dendronized polymers (DPs) with rotaxane-branched dendrons attached onto the polymer chains are proposed. Starting from macromonomers with both rotaxane-branched dendrons and polymerization site, targeted rotaxane-branched DPs are successfully synthesized through ring-opening metathesis polymerization (ROMP). Interestingly, due to the existence of multiple switchable [2]rotaxane branches within the attached dendrons, anion-induced reversible thickness modulation of the resultant rotaxane-branched DPs is achieved, which further lead to tunable thermal and rheological properties, making them attractive platform for the construction of smart polymeric materials.

Date: 2023
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DOI: 10.1038/s41467-023-41134-8

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