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    Proton-triggered topological transformation in superbase-mediated selective polymerization enables access to ultrahigh-molar-mass cyclic polymers

    The selective synthesis of ultrahigh-molar-mass (UHMM, >2 million Da) cyclic polymers is challenging as an exceptional degree of spatiotemporal control is required to overcome the possible undesired reactions ...

    Li Zhou, Liam T. Reilly, Changxia Shi, Ethan C. Quinn in Nature Chemistry (2024)

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    Recyclable cyclic bio-based acrylic polymer via pairwise monomer enchainment by a trifunctional Lewis pair

    The existing catalyst/initiator systems and methodologies used for the synthesis of polymers can access only a few cyclic polymers composed entirely of a single monomer type, and the synthesis of such authenti...

    Yanjiao Song, Jianghua He, Yuetao Zhang, Reid A. Gilsdorf in Nature Chemistry (2023)

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    A circular polyester platform based on simple gem-disubstituted valerolactones

    Geminal disubstitution of cyclic monomers is an effective strategy to enhance the chemical recyclability of their polymers, but it is utilized for that purpose alone and often at the expense of performance pro...

    **n-Lei Li, Ryan W. Clarke, **g-Yang Jiang, Tie-Qi Xu in Nature Chemistry (2023)

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    Completely recyclable biopolymers with linear and cyclic topologies via ring-opening polymerization of γ-butyrolactone

    Ring-opening polymerization (ROP) is a powerful synthetic methodology for the chemical synthesis of technologically important biodegradable aliphatic polyesters from cyclic esters or lactones. However, the bio...

    Miao Hong, Eugene Y.-X. Chen in Nature Chemistry (2016)