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Mildly Catalyzed Alternating Copolymerization Yields Solution-Processable Fluorinated Polyesters with High Thermal and Surface Performance
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DOI：10.1021/acs.macromol.5c02588.png)
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Abstract
En 中文
Fluoropolymers are indispensable for various high-performance applications, mainly due to their exceptional thermal stability, chemical resistance, and low surface energy. However, their environmental persistence, particularly the accumulation of per- and polyfluoroalkyl substances, poses significant ecological and health challenges. Recent studies have explored the incorporation of ester bonds into fluoropolymers to facilitate their controlled degradation and chemical recycling. Nevertheless, it remains difficult to achieve performance comparable to that of commercial fluoropolymers such as poly(vinylidene fluoride) and polytetrafluoroethylene. Herein, high-performance fluorinated polyesters are synthesized via ring-opening alternating copolymerization employing cesium pivalate as a novel catalyst. This approach enables precise polymerization control and yields fluorinated polyesters with well-defined molecular weights and tunable compositions. The resulting materials exhibit outstanding thermal stability, hydrophobicity, and chemical resistance, with surface properties comparable to those of commercial fluoropolymers. This study advances the development of sustainable fluoropolymers that combine high performance with potential chemical recyclability, thus addressing pressing environmental concerns.
Keywords:
RING-OPENING POLYMERIZATION
CYCLIC ANHYDRIDES
BLOCK POLYMERS
FLUOROPOLYMERS
OXIDE
Journal
IF:
5.2
Papers:
3.6W
Citations:
9.4W