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Issue 16, 2015
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Direct functionalization of Kevlar® with copolymers containing sulfonyl nitrenes

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Abstract

Generating innovative methods to functionalize fibers and interfaces are important strategies for developing coatings that impart new or improved properties to a given material. In this work, we present a method for functionalizing highly inert poly(p-phenylene terephthalamide) (Kevlar®) fibers via thermal generation of an electrophilic nitrene, while preserving the mechanical properties of the aramid. Because of the high affinity of the sulfonyl nitrene singlet state for aromatic rings, the use of a sulfonyl azide-based copolymer allows the covalent grafting of a wide variety of common commercial polymers to Kevlar. Also, by using reactive ester copolymers, an avenue for the attachment of more exotic or delicate functionalities like small molecules, dyes, and biomolecules through postpolymerization modification is described.

Graphical abstract: Direct functionalization of Kevlar® with copolymers containing sulfonyl nitrenes

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Publication details

The article was received on 21 Jan 2015, accepted on 06 Mar 2015 and first published on 10 Mar 2015


Article type: Paper
DOI: 10.1039/C5PY00090D
Author version available: Download Author version (PDF)
Citation: Polym. Chem., 2015,6, 3090-3097
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    Direct functionalization of Kevlar® with copolymers containing sulfonyl nitrenes

    J. Yatvin, S. A. Sherman, S. F. Filocamo and J. Locklin, Polym. Chem., 2015, 6, 3090
    DOI: 10.1039/C5PY00090D

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