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Self-Amplified Depolymerization of Oligo(thiourethanes) for the Release of COS/H2S.

ABSTRACT: Herein we report the self-amplified depolymerization of an aryl oligo(thiourethane) (OTU) for the release of COS/H2S. The OTU was synthesized via polyaddition of 4-isothiocyanatobenzyl alcohol and end-capped with an aryl azide. The aryl azide chain-end was reduced by tris(2-carboxyethyl)phosphine or H2S to the corresponding aniline, resulting in depolymerization (i.e., self-immolation) and the release of COS/H2S. Depolymerization was monitored by 1H NMR and UV-Vis spectroscopy, and the released COS was converted into H2S by the ubiquitous enzyme carbonic anhydrase in aqueous media.

SUBMITTER: Powell CR

PROVIDER: S-EPMC6609099 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Self-Amplified Depolymerization of Oligo(thiourethanes) for the Release of COS/H2S.

Powell Chadwick R CR Foster Jeffrey C JC Swilley Sarah N SN Kaur Kuljeet K Scannelli Samantha J SJ Troya Diego D Matson John B JB

Polymer chemistry 20190424 23

Herein we report the self-amplified depolymerization of an aryl oligo(thiourethane) (OTU) for the release of COS/H2S. The OTU was synthesized via polyaddition of 4-isothiocyanatobenzyl alcohol and end-capped with an aryl azide. The aryl azide chain-end was reduced by tris(2-carboxyethyl)phosphine or H2S to the corresponding aniline, resulting in depolymerization (i.e., self-immolation) and the release of COS/H2S. Depolymerization was monitored by 1H NM ...[more]

PMID: 31275434

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