Chemically Recyclable and Biodegradable Vulcanized Rubber.

Schwab, Simon T; Nelson, Taylor F; Mecking, Stefan

Schwab, Simon T; Nelson, Taylor F; Mecking, Stefan.

Afiliación

Schwab ST; Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, Universitätsstraße 10, 78464 Konstanz, Germany.
Nelson TF; Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, Universitätsstraße 10, 78464 Konstanz, Germany.
Mecking S; Chair of Chemical Materials Science, Department of Chemistry, University of Konstanz, Universitätsstraße 10, 78464 Konstanz, Germany.

ACS Sustain Chem Eng ; 12(16): 6281-6288, 2024 Apr 22.

Article en En | MEDLINE | ID: mdl-38665800

ABSTRACT

ABSTRACT

The cross-linked nature of vulcanized rubbers as used in tire and many other applications prohibits an effective closed-loop mechanical or chemical recycling. Moreover, vulcanization significantly retards the material's biodegradation. Here, we report a recyclable and biodegradable rubber that is generated by the vulcanization of amorphous, unsaturated polyesters. The elastic material can be broken down via solvolysis into the underlying monomers. After removal of the vulcanized repeat units, the saturated monomers, constituting the major share of the material, can be recovered in overall recycling rates exceeding 90%. Respirometric biodegradation experiments by 13CO2 tracking under environmental conditions via the polyesters' diol monomer indicated depolymerization and partial mineralization of the vulcanized polyester rubbers.

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Sustain Chem Eng Año: 2024 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Estados Unidos

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