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Repurposing Poly(monothiocarbonate)s to Poly(thioether)s by Organic Bases

Abstract

This work reports a unique one-pot/one-step route to rapidly produce poly(thioether)s from poly(monothiocarbonate) (PMTC), a sulfur-containing polymer, using commercially available organic bases. The process underwent firstly the degradation of PMTC to cyclic monothiocarbonate that generated episulfide via decarboxylative reaction, and then ring-opening polymerization of episulfide. Organic bases catalyzed the degradation of PMTC and initiated the ring-opening of generated cyclic monothiocarbonate. This process was successfully expanded to the transformation of several PMTCs to the corresponding poly(thioether)s. The resultant poly(thioether)s exhibit higher thermal decomposition temperatures (up to 311 °C), higher refractive indexes (ca. 1.62) and lower glass transition temperatures (-48 °C) than those of the corresponding PMTCs. This work provides a polymer-to-polymer pathway for repurposing poly(monothiocarbonate)s.

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Publication details

The article was received on 01 Aug 2019, accepted on 10 Oct 2019 and first published on 10 Oct 2019


Article type: Paper
DOI: 10.1039/C9PY01147A
Polym. Chem., 2019, Accepted Manuscript

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    Repurposing Poly(monothiocarbonate)s to Poly(thioether)s by Organic Bases

    X. Cao, C. Zhang, J. Yang, L. Hu and X. Zhang, Polym. Chem., 2019, Accepted Manuscript , DOI: 10.1039/C9PY01147A

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