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Synthesis and characterization of poly(ethylene glycol) bottlebrush networks via ring-opening metathesis polymerization.

ABSTRACT: Herein it is reported how the overlap concentration (C*) can be used to overcome crosslinking due to diol impurities in commercial PEG, allowing for the synthesize of bottlebrush polymers with good control over molecular weight. Additionally, PEG-based bottlebrush networks are synthesized via ROMP, attaining high conversions with minimal sol fractions (<2%). The crystallinity and mechanical properties of these networks are then further altered by solvent swelling with phosphate buffer solution (PBS) and 1-ethyl-3-methylimidazolium ethyl sulfate/DCM cosolvents. The syntheses reported here highlight the potential of the bottlebrush network architecture for use in the rational design of new materials.

SUBMITTER: Clarke BR

PROVIDER: S-EPMC9373913 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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Synthesis and characterization of poly(ethylene glycol) bottlebrush networks via ring-opening metathesis polymerization.

Clarke Brandon R BR Tew Gregory N GN

Journal of polymer science (2020) 20220131 9

Herein it is reported how the overlap concentration (C*) can be used to overcome crosslinking due to diol impurities in commercial PEG, allowing for the synthesize of bottlebrush polymers with good control over molecular weight. Additionally, PEG-based bottlebrush networks are synthesized via ROMP, attaining high conversions with minimal sol fractions (<2%). The crystallinity and mechanical properties of these networks are then further altered by solvent swelling with phosphate buffer sol ...[more]

PMID: 35967758

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