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Nitroxide‐Mediated Polymerization of an Organo‐Soluble Protected Styrene Sulfonate: Development of Homo‐ and Random Copolymers
Author(s) -
Consolante Valerie,
Marić Milan
Publication year - 2011
Publication title -
macromolecular reaction engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 32
eISSN - 1862-8338
pISSN - 1862-832X
DOI - 10.1002/mren.201100031
Subject(s) - copolymer , nitroxide mediated radical polymerization , polymerization , styrene , monomer , polymer chemistry , sulfonate , chain propagation , chemistry , methacrylate , radical polymerization , materials science , polymer , organic chemistry , sodium
Trioctylammonium p ‐styrenesulfonate (SS‐TOA), is polymerized using the BlocBuilder unimolecular initiator and SG1. Polymerizations are controlled for low theoretical molecular weight, resulting in low polydispersities and a linear increase in $\overline {M} _{{\rm n}} $ up to ≈35% conversion. The product of the propagation rate constant and the equilibrium constant for SS‐TOA is 1.4–2 times that of styrene at the same temperature, suggesting its suitability as a controlling co‐monomer for BlocBuilder‐mediated NMP with methacrylates. SS‐TOA is effective as a controlling co‐monomer for gradient polymerization with GMA using NHS‐modified BlocBuilder. The resulting copolymer has a narrow, monomodal MWD and a linear increase in $\overline {M} _{{\rm n}} $ with conversion, suggesting SS‐TOA is an effective NMP co‐monomer.