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Radical Copolymerization of Thionoglycolide and Derivatives for Preparation of Degradable Vinyl Polymers
- Source :
- Macromolecules; August 2024, Vol. 57 Issue: 16 p8059-8066, 8p
- Publication Year :
- 2024
-
Abstract
- This study explores the copolymerization behavior of thionated glycolide derivatives with a focus on thionoglycolide (TGD). It was found that TGD exhibits a nuanced reactivity profile, showing the highest compatibility with styrene and tert-butyl acrylate (tBA). Kinetic analysis of the TGD/tBA system conducted at 100 °C in bulk demonstrated comparable incorporation rates for both monomers. Furthermore, RAFT copolymerization mediated by a trithiocarbonate RAFT agent resulted in a well-defined copolymer with Mn= 13.4 kg mol–1and Đ= 1.2. 2D-NMR microstructural analysis revealed that TGD was exclusively incorporated in its ring-closed S,O-thioketal form, suggesting a selective 1,2-vinyl propagation mechanism. The degradability of the resulting copolymers was also investigated, with NaOCl, NaOMe, and benzoyl peroxide effectively cleaving S,O-thioketal linkages.
Details
- Language :
- English
- ISSN :
- 00249297 and 15205835
- Volume :
- 57
- Issue :
- 16
- Database :
- Supplemental Index
- Journal :
- Macromolecules
- Publication Type :
- Periodical
- Accession number :
- ejs67185569
- Full Text :
- https://doi.org/10.1021/acs.macromol.4c01259