Jiraya KiriratnikomCarine RobertVincent GuérineauVincenzo VendittoChristophe M. ThomasVidyasirimedhi Institute of Science and TechnologyInstitut de Recherche de Chimie ParisUniversité Paris-SudMahidol UniversityUniversità di Salerno2020-01-272020-01-272019-01-01Frontiers in Chemistry. Vol.7, No.MAY (2019)229626462-s2.0-85068532633https://repository.li.mahidol.ac.th/handle/20.500.14594/50599© 2019 Kiriratnikom, Robert, Guérineau, Venditto and Thomas. An effective route for ring-opening copolymerization of β-butyrolactone (BBL) with ε-decalactone (ε-DL) is reported. Microstructures of the block copolymers characterized by 13C NMR spectroscopy revealed syndiotactic-enriched poly(3-hydroxybutyrate) (PHB) blocks. Several di- and triblock copolymers (PDL-b-PHB and PDL-b-PHB-b-PDL, respectively) were successfully synthesized by sequential addition of the monomers using (salan)Y(III) complexes as catalysts. The results from MALDI-ToF mass spectrometry confirmed the presence of the copolymers. Moreover, thermal properties of the block copolymers were also investigated and showed that the microphase separation of PDL-b-PHB copolymers into PHB- and PDL-rich domains has an impact on the glass transition temperatures of both blocks.Mahidol UniversityChemistryArticleSCOPUS10.3389/fchem.2019.00301