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Synthesis of Michael Acceptor Ionomers of Poly(4-Sulfonated Styrene-co-Poly(Ethylene Glycol) Methyl Ether Acrylate).

ABSTRACT: Ionomers containing sodium 4-styrene sulfonate (4SS) and poly(ethylene glycol) methyl ether acrylate (PEGA) were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization. The polymerization was mediated by 1-phenylethyl dithiobenzoate chain transfer agent in a dimethylformamide/water solvent system. Well-defined copolymers of pPEGA-co-4SS were produced with molecular weights ranging from 10 kDa to 40 kDa and polydispersity indices (PDIs) of 1.06-1.18 by gel permeation chromatography (GPC) against monodisperse poly(methyl methacrylate) (PMMA) standards. Post polymerization, the dithioester was reduced and trapped in situ with divinyl sulfone to produce a well-defined, semitelechelic pPEGA-co-4SS Michael acceptor polymer. UV-vis, infrared, and (1)H NMR spectroscopy confirmed that the integrity of the polymer backbone was maintained and that the vinyl sulfone was successfully incorporated at the chain end.

SUBMITTER: Alconcel SN 

PROVIDER: S-EPMC3086289 | biostudies-literature | 2009 Nov

REPOSITORIES: biostudies-literature

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Synthesis of Michael Acceptor Ionomers of Poly(4-Sulfonated Styrene-co-Poly(Ethylene Glycol) Methyl Ether Acrylate).

Alconcel Steevens N S SN   Grover Gregory N GN   Matsumoto Nicholas M NM   Maynard Heather D HD  

Australian journal of chemistry 20091101 11

Ionomers containing sodium 4-styrene sulfonate (4SS) and poly(ethylene glycol) methyl ether acrylate (PEGA) were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization. The polymerization was mediated by 1-phenylethyl dithiobenzoate chain transfer agent in a dimethylformamide/water solvent system. Well-defined copolymers of pPEGA-co-4SS were produced with molecular weights ranging from 10 kDa to 40 kDa and polydispersity indices (PDIs) of 1.06-1.18 by gel permeatio  ...[more]

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