Visible Light-Regulated Ring-Opening Polymerization of Lactones by Employing Indigo as a Photoacid Catalyst.
Macromol Rapid Commun
; 45(11): e2400054, 2024 Jun.
Article
in En
| MEDLINE
| ID: mdl-38471494
ABSTRACT
The development of visible light-regulated polymerizations for precision synthesis of polymers has drawn considerable attention in the past years. In this study, an ancient dye, indigo, is successfully identified as a new and efficient photoacid catalyst, which can readily promote the ring-opening polymerization of lactones under visible light irradiation in a well-controlled manner, affording the desired polyester products with predictable molecular weights and narrow dispersity. The enhanced acidity of indigos by excitation is crucial to the H-bonding activation of the lactone monomers. Chain extension and block copolymer synthesis are also demonstrated with this method.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Polymerization
/
Indigo Carmine
/
Lactones
/
Light
Language:
En
Journal:
Macromol Rapid Commun
Year:
2024
Document type:
Article
Affiliation country:
China