Poly(butylene succinate-co-e-caprolactone) copolyesters: Enzymatic synthesis in bulk and thermal properties

This work explores for the first time the enzymatic synthesis of poly(butylene-co-e-caprolactone) (PBSCL) copolyesters in bulk using commercially available monomers (dimethyl succinate (DMS), 1,4-butanediol (BD), and e-caprolactone (CL)). A preliminary kinetic study was carried out which demonstrate...

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Bibliographic Details
Published in:Polymers
Main Authors: Núñez Gallego, María, Muñoz Guerra, Sebastián, Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon
Other Authors: Universitat Politècnica de Catalunya. Departament d'Enginyeria Química, Universitat Politècnica de Catalunya. POL - Polímers Industrials Avançats i Biopolímers Tecnològics
Format: Article in Journal/Newspaper
Language:English
Published: Multidisciplinary Digital Publishing Institute (MDPI) 2021
Subjects:
Àrees temàtiques de la UPC::Enginyeria química
Polyesters
Polymers
Polymerization
Aliphatic polyesters
Poly(butylene succinate-co-e-caprolactone)
Enzymatic synthesis
CALB lipase
Molecular weights
Microstructure
Thermal properties
Polièsters
Compostos alifàtics
Polímers
Polimerització
microestructures
Antarc*
Antarctica
Online Access:http://hdl.handle.net/2117/351934
https://doi.org/10.3390/polym13162679
Description
Summary:This work explores for the first time the enzymatic synthesis of poly(butylene-co-e-caprolactone) (PBSCL) copolyesters in bulk using commercially available monomers (dimethyl succinate (DMS), 1,4-butanediol (BD), and e-caprolactone (CL)). A preliminary kinetic study was carried out which demonstrated the higher reactivity of DMS over CL in the condensation/ring opening polymerization reaction, catalyzed by Candida antarctica lipase B. PBSCL copolyesters were obtained with high molecular weights and a random microstructure, as determined by 13C NMR. They were thermally stable up to 300 °C, with thermal stability increasing with the content of CL in the copolyester. All of them were semicrystalline, with melting temperatures and enthalpies decreasing up to the eutectic point observed at intermediate compositions, and glass transition temperatures decreasing with the content of CL in the copolyester. The use of CALB provided copolyesters free from toxic metallic catalyst, which is very useful if the polymer is intended to be used for biomedical applications. Peer Reviewed Objectius de Desenvolupament Sostenible::11 - Ciutats i Comunitats Sostenibles Postprint (published version)

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