Metallopolymers in minutes <i>via</i> organocatalysis at room temperature

Oberle, Kjersti G.; Whitman, Elizabeth L.; Jolly, Charles S.; Webster, K. A.; Marx, Benjamin S.; Howard, Christopher; Hanger, Clara A.; Ramey, Erin E.; Zou, Yushi; Lowe, Jared C.; Turlington, Mark; Turlington, Christopher R.

doi:10.1039/d2py00747a

Cited by 1 publication

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“…The calibration curve for the GPC-RI measurements was constructed from polystyrene standards. It has been shown for other polymers with heavy pendant groups, such as metal complexes, that GPC-RI underestimates the molecular weight when using common polymer standards such as polystyrene or poly(methyl methacrylate) [18][19][20]. Because of the heavy mass of the iodine atom, universal calibration (GPC-UC) was used, which couples measurements from a viscometer to the calibration curve to obtain an absolute determination of molecular weights [21].…”

Section: Resultsmentioning

confidence: 99%

A Biodegradable, Polymer-Supported Oxygen Atom Transfer Reagent

et al. 2023

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Biodegradable polymers are desirable to mitigate the environmental impact of plastic waste in the environment. Over the past several decades, the development of organocatalytic ring-opening polymerization (OROP) has made the synthesis of many new types of biodegradable polymers possible. In this research article, the first example of an oxygen atom transfer reagent pendant on a biodegradable polymer backbone is reported. The monomers for the polycarbonate backbone are sourced from the biodegradable 2,2-bis(hydroxymethyl) propionic acid molecule, and an iodoaryl group is installed pendant to the cyclic monomer for post-polymerization modification into an iodosylaryl oxygen atom transfer reagent. The key I-O bond is characterized by XPS spectroscopy, and a test reaction to triphenylphosphine demonstrates the ability of the polymer to engage in an oxygen atom transfer reaction with a substrate.

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