3 years ago

Photocontrolled Interconversion of Cationic and Radical Polymerizations

Photocontrolled Interconversion of Cationic and Radical Polymerizations
Quentin Michaudel, Brett P. Fors, Veronika Kottisch
The ability to combine two polymerization mechanisms in a one-pot setup and switch the monomer selectivity via an external stimulus provides an excellent opportunity to control polymer sequence and structure. We report a strategy that enables monomer incorporation to be determined via the selection of the wavelength of light through selective activation of either cationic or radical processes. This method enables the synthesis of varying polymeric structures under identical solution conditions but with simple modulation of the external stimulus. Additionally, changes in the ratios of the two photocatalysts afford complementary chemical control over these reactions to design elaborated polymeric structures. Our strategy takes advantage of the unique regulation that can be accessed through light.

Publisher URL: http://dx.doi.org/10.1021/jacs.7b06661

DOI: 10.1021/jacs.7b06661

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