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Updated: Jan 20, 2026
Synthesis, Crosslinking and Characterization of Hydrogels
Published on: April 30, 2023
A New Strategy for the Synthesis of Fluorinated Polyurethane
Pu-Cheng Wang1, Dan Lu2, Hu Wang2
1Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621000, China.
Abstract:
An alternating fluorinated copolymer based on chlorotrifluoroethylene (CTFE) and butyl vinyl ether (BVE) was synthesized by RAFT/MADIX living/controlled polymerization in the presence of S-benzyl O-ethyl dithiocarbonate (BEDTC). Then, using the obtained poly(CTFE-alt-BVE) as a macro chain transfer agent (macro-CTA), a block copolymer was prepared by chain extension polymerization of vinyl acetate (VAc). After a basic methanolysis process, the poly(vinyl acetate) (PVAc) block was transferred into poly(vinyl alcohol) (PVA). Finally, a novel fluorinated polyurethane with good surface properties due to the mobility of the flexible fluorinated polymer chains linked to the network was obtained via reaction of the copolymer bearing the blocks of PVA with isophorone diisocyanate (IPDI) as a cross-linking agent.
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