PFAS Alternatives

PF-01

Monomer providing leveling properties (smoothness)

PF-01 is a fluorine-free, silicone-based methacrylic monomer. Polymers obtained by copolymerizing PF-01 with compatible monomers are expected to enhance leveling properties through a reduction in surface tension.

Structure of PF-01
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Physical properties and solubility of PF-01

Morphology Liquid
Color Colorless to yellow
Melting point < 0 °C
Molecular weight 1,000–1,500
Solubility
(wt%)		 Ethyl acetate: > 50
Toluene: > 50
MEK: > 50
Acetone: > 50
Ethanol: > 50
Methanol: 5–10
Water: < 1

Features: Enhanced leveling properties

The surface tension of polymers obtained by copolymerizing PF-01 with compatible monomers decreases to a level equivalent to that of PFAS-containing polymers.

Surface tension measurements of polymers synthesized with PF-01 (leveling performance evaluation)

The surface tension (mN/m) of solutions of three polymers (A, B, and C), each added to a solvent at 0.08 wt%, was measured. The results indicated that the polymer copolymerized with PF-01 exhibited the lowest surface tension.

Synthesis of polymers used for measurement
Polymer A: Copolymerization of a compatible monomer with PF-01
Polymer B: Copolymerization of a compatible monomer with PFAS
Polymer C: Copolymerization of a compatible monomer with an existing silicone-based monomer

Surface tension of a solvent when 0.08 wt% of polymer A, B, or C is added; polymer A (PF-01 copolymer) shows the lowest surface tension.

Polymerization example using PF-01

Initiator V-601
Monomer ratio PF-01 / Compatible monomer
40 / 60 (wt%)
Polymerization temperature 80 °C
Polymerization time 6 h
Molecular weight Approximately 20,000–50,000