La(iii)-Catalysed degradation of polyesters to monomers via transesterifications?

Chemical Communications Pub Date: 2022-06-27 DOI: 10.1039/D2CC02448A

Abstract

Tris(acetylacetonato)lanthanum(III) (1 mol%) catalyses the degradation of poly(butylene succinate) (Mw = 90?700) by transesterification in MeOH at 90 °C for 4 h, thus affording dimethyl succinate (>99% yield) and 1,4-butanediol (98% yield). Moreover, the quantitative degradations of poly(ethylene adipate), poly(ethylene terephthalate) and poly(butylene terephthalate) are also reported.

Graphical abstract: La(iii)-Catalysed degradation of polyesters to monomers via transesterifications
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