Martinez-Cutillas, Alfredo;Leon, Salvador;Oh, Sejin;Martinez de Ilarduya, Antxon published 《Enzymatic recycling of polymacrolactones》 in 2022. The article was appeared in 《Polymer Chemistry》. They have made some progress in their research.Quality Control of Oxacyclohexadecan-2-one The article mentions the following:
The use of renewable monomers to make new polyesters which could replace the ones obtained from petrochem. resources employing green processes is attracting a lot of attention these days. With this in mind, three different macrolactones, ω-pentadecalactone, globalide and 6-hexadecenlactone, have been polymerized in bulk by enzymic ring opening polymerization (e-ROP) using immobilized Candida antarctica lipase B to give their corresponding polymacrolactones (PMLs). For the first time, these PMLs have been depolymerized enzymically in solution with the concourse of the same enzyme and at mild temperatures GPC, NMR and ESI MS demonstrated that the main products recovered after the enzymic processive recycling were cyclic monomers and dimers, with a small amount of higher size macrocyclic oligoesters (MCOs). It was observed that these depolymerizations followed a Michaelis-Menten kinetic model. Finally it was shown that these MCOs could be repolymd. This research provides a biosynthetic method for chem. recycling of these interesting polymeric materials providing a pathway towards a circular economy. And Oxacyclohexadecan-2-one (cas: 106-02-5) was used in the research process.
Oxacyclohexadecan-2-one(cas:106-02-5) is a natural product found in Lonicera japonica and Angelica archangelica.Quality Control of Oxacyclohexadecan-2-one It is a macrocyclic lactone that can be used as a flavoring agent and fragrance ingredient due to its musk flavor/odor.
Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics