Solvent Replacement: Fluoropolymer Polymerization
- AIBN composition 2.5 times lower than in benzene (benzene has higher ?)
- Efficiency factor in CO2 f=0.83, in benzene f=0.53: low viscosity aids diffusion and avoids recombination
- FOA copolymerized with etylene, styrene, MMA, butyl acrylate
DeSimone et al: Science 1992, 257, 945
- Insolubility necessitates use of CFC solvents
- Solute-solvent interaction with F and CO2 allows 25% solubiltiy of high MW fluoropolymers (,000 g/mol)
- Wide range of solvent strengths in SCF by ?P
1,1-dihydroperfluorooctyl acrylate
Used as lubricants in computer disk drives, protective coatings.