Synthesis and Characterization of Polyolefin-graft-oligopeptide Polyelectrolytes

Novel polyelectrolytes consisting of hydrophobic polyolefin backbones and charged oligopeptide grafts have been synthesized and characterized. Oligopeptide-containing monomers were prepared by solid-phase peptide synthesis (SPPS) and then polymerized by ring-opening metathesis polymerization (ROMP)....

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Bibliographic Details
Published in:Macromolecules 2007-10, Vol.40 (21), p.7617-7624
Main Authors: Breitenkamp, Rebecca B, Ou, Zhaoyang, Breitenkamp, Kurt, Muthukumar, M, Emrick, Todd
Format: Article
Language:English
Subjects:
Applied sciences
Copolymerization
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:Novel polyelectrolytes consisting of hydrophobic polyolefin backbones and charged oligopeptide grafts have been synthesized and characterized. Oligopeptide-containing monomers were prepared by solid-phase peptide synthesis (SPPS) and then polymerized by ring-opening metathesis polymerization (ROMP). Copolymerization of the peptide-functionalized monomers with charge neutral cyclic olefins (i.e., poly(ethylene glycol)-substituted) gave polymers with varying charge density. These graft copolymers were characterized by nuclear magnetic resonance (NMR) spectroscopy, organic and aqueous gel permeation chromatography (GPC), and light scattering. Light scattering indicated that the oligopeptide-functionalized polyolefins could be tailored to form extended, pearl-like, or multimolecular structures, depending on the composition and density of the grafts.
ISSN:0024-9297
1520-5835
DOI:10.1021/ma070714v