Alkaline Earth Metal-Mediated Highly Iso-selective Ring-Opening Polymerization of rac-Lactide

Bhattacharjee, J and Harinath, A and Panda, Tarun K and et al, . (2020) Alkaline Earth Metal-Mediated Highly Iso-selective Ring-Opening Polymerization of rac-Lactide. Chemistry - An Asian Journal. ISSN 1861-4728 (In Press)

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Abstract

Alkaline earth (Ae) metal complexes of the aminophosphine borane ligand are highly active and iso-selective catalysts for the ring-opening polymerization (ROP) of rac-lactide (LA). The polymerization reactions are well controlled and produce polylactides with molecular weights that are precise and narrowly distributed. Kinetic studies reveal that the ROP of rac-LA catalyzed by all Ae metal complexes had a first-order dependency on LA concentration as well as catalyst concentration. A plausible reaction mechanism for Ae metal complex-mediated ROP of rac-LA is discussed, based on controlled kinetic experiments and molecular chain mobility.

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IITH Creators:
IITH CreatorsORCiD
Panda, Tarun Khttp://orcid.org/0000-0003-0975-0118
Item Type: Article
Uncontrolled Keywords: Ae metals, Polylactide, Ring-opening polymerization. Isotactic-PLA, σ-borane complexes, Indexed in Scopus
Subjects: Chemistry
Divisions: Department of Chemistry
Depositing User: Team Library
Date Deposited: 16 Mar 2020 05:55
Last Modified: 16 Mar 2020 05:55
URI: http://raiithold.iith.ac.in/id/eprint/7530
Publisher URL: http://doi.org/10.1002/asia.201901751
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