Published in

MDPI, Catalysts, 6(10), p. 620, 2020

DOI: 10.3390/catal10060620

Links

Tools

Export citation

Search in Google Scholar

Stereoselective ROP of rac- and meso-Lactides Using Achiral TBD as Catalyst

Journal article published in 2020 by Sébastien Moins, Sébastien Hoyas, Vincent Lemaur ORCID, Beste Orhan, Kayla Delle Chiaie ORCID, Roberto Lazzaroni, Daniel Taton, Andrew P. Dove ORCID, Olivier Coulembier ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Green circle
Preprint: archiving allowed
Upload
Green circle
Postprint: archiving allowed
Upload
Green circle
Published version: archiving allowed
Upload
Policy details
Data provided by SHERPA/RoMEO

Abstract

1,5,7-Triazabicyclo[4.4.0]dec-5-ene (TBD) polymerizes rac-lactide (rac-LA) to form highly isotactic polylactide (PLA) with a Pm = 0.88, while meso-LA yields heterotactic PLA (Pm ~ 0.8) at −75 °C. The stereocontrol of the cryogenic-based ring-opening polymerization comes from a perfect imbrication of both chiral LA and the propagating chiral end-group interacting with the achiral TBD catalyst.