Graft copolymers containing fluoroaliphatic groups
AssigneeMinnesota Mining and Manufacturing Company
InventorsRichard J. Rolando, James E. Sax
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Abstract
A fluorochemical graft copolymer comprising: a base polymer comprising polymerized units derived from monomers having terminal olefinic double bonds, having a moiety comprising a fluoroaliphatic group grafted thereto. Also disclosed are processes for preparing such fluorochemical graft copolymers, forming and annealing methods for enhancing the surface activity of such a graft copolymer, polymer blends comprising such a fluorochemical graft copolymer and a matrix polymer that is miscible with the base polymer, and a method for reducing the surface energy of a polymer comprising polymerized units derived from monomers having terminal olefinic double bonds.
Claims8
A fluorochemical graft copolymer comprising:
- a base polymer comprising polymerized units derived from monomers having terminal olefinic double bonds, having grafted thereto a moiety of the formula
- --CH.sub.2 --CHR--Q--R.sub.f
- wherein
- R is hydrogen, trifluoromethyl, or lower alkyl;
- Q is a divalent linking group that does not substantially interfere with free radical polymerization;
- and
- R.sub.f is a fluoroaliphatic group comprising a fully fluorinated terminal group containing at least seven fluorine atoms.
Dependencies are inferred from the claim text.