Publication: Stereoselective ring-opening (co)polymerization of β-butyrolactone and ε-decalactone using an yttrium bis(phenolate) catalytic system
Issued Date
2019-01-01
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ISSN
22962646
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2-s2.0-85068532633
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Mahidol University
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SCOPUS
Bibliographic Citation
Frontiers in Chemistry. Vol.7, No.MAY (2019)
Suggested Citation
Jiraya Kiriratnikom, Carine Robert, Vincent Guérineau, Vincenzo Venditto, Christophe M. Thomas Stereoselective ring-opening (co)polymerization of β-butyrolactone and ε-decalactone using an yttrium bis(phenolate) catalytic system. Frontiers in Chemistry. Vol.7, No.MAY (2019). doi:10.3389/fchem.2019.00301 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/50599
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Title
Stereoselective ring-opening (co)polymerization of β-butyrolactone and ε-decalactone using an yttrium bis(phenolate) catalytic system
Abstract
© 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.