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Synthesis of Aromatic–Aliphatic Polyesters by Enzymatic Ring Opening Polymerization of Cyclic Oligoesters and their Cyclodepolymerization for a Circular Economy AITranslate

Irma Flores; Antxon Martínez de Ilarduya; Haritz Sardon; Alejandro J. Müller; Sebastián MuñozGuerra;
University of the Basque Country UPV/EHU;Departament d’Enginyeria Química, Universitat Politècnica de Catalunya; University of the Basque Country UPV/EHU; University of the Basque Country UPV/EHU;Departament d’Enginyeria Química, Universitat Politècnica de Catalunya
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Publisher: ACS
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Abstract AITranslate

Cyclic oligomers of hexamethylene furanoate and hexamethylene terephthalate were obtained from 1,6-hexanediol and the corresponding methyl esters using Candida antarctica lipase B (CALB) enzyme catalyst. HPLC, MALDI-TOF MS, and NMR analyses showed that mixtures composed from cyclic dimer up to heptamer were obtained almost quantitatively. Subsequently, these cycles were polymerized by ring opening polymerization (ROP) mediated by CALB to obtain semicrystalline polymers. In addition, we demonstrated that the polymers obtained from the ROP process could be transformed into cyclic oligomers in high yields using enzymatic cyclodepolymerization, thereby recycling the polymer in a circular biosynthetic path.

KeyWords AITranslate

aromatic−aliphatic polyesters enzymatic cyclization enzymatic polymerization enzymatic cyclodepolimerization Show More
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Basic Information:

DOI：https://doi.org/10.1021/acsapm.8b00265

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Citation Information:

Cyclic oligomers of hexamethylene furanoate and hexamethylene terephthalate were obtained from 1,6-hexanediol and the corresponding methyl esters using Candida antarctica lipase B (CALB) enzyme catalyst. HPLC, MALDI-TOF MS, and NMR analyses showed that mixtures composed from cyclic dimer up to heptamer were obtained almost quantitatively. Subsequently, these cycles were polymerized by ring opening polymerization (ROP) mediated by CALB to obtain semicrystalline polymers. In addition, we demonstrated that the polymers obtained from the ROP process could be transformed into cyclic oligomers in high yields using enzymatic cyclodepolymerization, thereby recycling the polymer in a circular biosynthetic path.

quote

GB/T 7714-2015 [1] Irma Flores, Antxon Martínez de Ilarduya, Haritz Sardon, et al. ACS Applied Polymer Materials, 2019(1). DOI:10.1021/acsapm.8b00265.
MLA [1] Irma Flores, et al., ACS Applied Polymer Materials, no. 1, 2019, https://doi.org/10.1021/acsapm.8b00265.
APA [1] Irma Flores, Antxon Martínez de Ilarduya, Haritz Sardon, Alejandro J. Müller, & Sebastián MuñozGuerra. (2019). ACS Applied Polymer Materials(1). https://doi.org/10.1021/acsapm.8b00265
IEEE [1] Irma Flores, Antxon Martínez de Ilarduya, Haritz Sardon, Alejandro J. Müller, and Sebastián MuñozGuerra, ACS Applied Polymer Materials, no. 1, 2019, doi: 10.1021/acsapm.8b00265. keywords: {aromatic−aliphatic polyesters;enzymatic cyclization;enzymatic polymerization;enzymatic cyclodepolimerization;Show More}