Determining sulfur speciation in oxidatively crosslinked degradable polymers using sulfur K‐edge X‐ray absorption spectroscopy
Melissa A. Smith,
U. L. D. Inush Kalana,
George E. Sterbinsky
et al.
Abstract:A new family of water‐degradable elastic polymers prepared by oxidative crosslinking of the parent polythionolactones shows promise in a broad range of applications, but the compositions of these materials elude conventional analytical methods. Here we use sulfur K‐edge X‐ray absorption spectroscopy to quantify the amounts of thioether, disulfide, sulfone, sulfate ester, and thionoester in each polymer and to rule out the presence of several other functional groups, including sulfonate, thiosulfonate, sulfate,… Show more
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