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- Title
Synthesis and surface properties of amphiphilic fluorine‐containing diblock copolymers.
- Authors
Chekurov, Kirill E.; Barabanova, Anna I.; Blagodatskikh, Inesa V.; Lokshin, Boris V.; Kondratenko, Mikhail S.; Gallyamov, Marat O.; Peregudov, Alexander S.; Khokhlov, Alexei R.
- Abstract
Amphiphilic diblock copolymers (DCs) of 2,3,4,5,6‐pentafluorostyrene (PFS) and 2‐hydroxyethyl methacrylate (HEMA) of different composition and molecular weights were prepared by two‐step reversible addition–fragmentation chain transfer (RAFT) polymerization and first used for preparation of superhydrophobic coatings for cotton/polyester fabrics. The transition from hydrophobic to superhydrophobic coatings is controlled by the ratio between poly(2,3,4,5,6‐pentafluorostyrene) (PPFS) block and poly(2‐hydroxyethyl methacrylate) (PHEMA) block lengths (PnPFS/PnHEMA). The increase in PnPFS/PnHEMA is accompanied by a significant increase in water (θН2О) and diiodomethane (θCH2I2) contact angles, which reach the plateau at PnPFS/PnHEMA = 3.5 and remains almost constant up to PnPFS/PnHEMA = 6.2. Surface modification of the cotton/polyester fabric with the DC having PnPFS/PnHEMA = 6.2 produced superhydrophobic surface with θН2О = 158 ± 4° and contact angle hysteresis CAH = 5 ± 2°, and θCH2I2 = 107 ± 3°.
- Subjects
DIBLOCK copolymers; SURFACE properties; MOLECULAR weights; CONTACT angle; SUPERHYDROPHOBIC surfaces; METHACRYLATES; POLYESTERS
- Publication
Journal of Applied Polymer Science, 2021, Vol 138, Issue 4, p1
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.49714