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Nickel‐catalyzed polymerization of a substituted sulfoxonium ylide
Author(s) -
Lu Sherilyn J.,
Kang Songsu,
Cho Youngsang,
Choi Minseok,
Bielawski Christopher W.
Publication year - 2021
Publication title -
journal of polymer science
Language(s) - English
Resource type - Journals
eISSN - 2642-4169
pISSN - 2642-4150
DOI - 10.1002/pol.20210228
Subject(s) - monomer , polymerization , catalysis , polymer chemistry , polymer , nickel , yield (engineering) , ethylene , chemistry , materials science , organic chemistry , composite material
The homopolymerization of (dimethylamino)phenylsulfoxonium ethylide, a substituted sulfoxonium ylide, is reported. Treatment of the monomer with a readily available Ni(II) catalyst afforded poly[(1‐butene)‐ ran ‐(2‐butene)‐ ran ‐(ethylene)] in good yield and high molecular weight. Varying the initial monomer‐to‐catalyst feed ratio enabled control over the molecular weights of the polymers produced. The polymerization mechanism appears to proceed in a chain growth fashion that entails the addition of ethylide units to growing polymer chains in conjunction with the expulsion of (dimethylamino)phenyl sulfoxide as a byproduct.