Journal
ACS MACRO LETTERS
Volume 9, Issue 8, Pages 1114-1118Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsmacrolett.0c00364
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Funding
- Virginia Tech
- ACS-Petroleum Research Foundation [57926-DNI-7]
- National Science Foundation [CHE-1807911]
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Ring-opening polymerization is used to prepare polyesters with precisely controlled molecular weights, molecular weight distributions, and tacticities. Herein, we report a Co/Zn catalytic system that can be activated by an electrical current to mediate efficient ring-opening polymerization of enantiopure O-carboxyanhydrides, allowing for the synthesis of isotactic functionalized polyesters with high molecular weights (>140 kDa) and narrow molecular weight distributions (M-w/M-n < 1.1). We also demonstrate that these catalysts can be used for stereoselective ring-opening polymerization of racemic O-carboxyanhydrides to synthesize syndiotactic or stereoblock copolymers with different glass transition temperatures compared with their atactic counterparts.
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