mz1c00686_si_001.pdf (5.07 MB)
C1 Polymerization of Fluorinated Aryl Diazomethanes
journal contribution
posted on 2021-12-13, 18:41 authored by Songsu Kang, Sherilyn J. Lu, Christopher W. BielawskiA library of fluorinated
aryl diazomethanes were polymerized using
BF3·OEt2 as a catalyst. The polymerization
of 2,3,4,5,6-pentafluorophenyl diazomethane was found to be controlled,
permitted chain extensions, and facilitated access to a series of
block copolymers. Moreover, the polymer chains grew in one carbon
increments (so-called “C1 polymerizations”) and, as
such, afforded highly substituted polymers that featured aryl units
pendant to every carbon atom of the backbone. The polymers were characterized
using size exclusion chromatography, various spectroscopic techniques,
and a series of static and dynamic contact angle measurements. Compared
to less-substituted analogues that were prepared using typical C2
polymerization methodologies, the C1 fluorinated polymers were found
to be more hydrophobic while maintaining a sufficient solubility to
be processed into robust films.
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various spectroscopic techniquespolymerized using bfpolymer chains grewpermitted chain extensionsone carbon incrementsfluorinated aryl diazomethanesevery carbon atomc1 fluorinated polymers2 subsufficient solubilitysubstituted analoguesrobust filmspentafluorophenyl diazomethanefacilitated accessc1 polymerizationblock copolymers