Crosslinkable copolymers comprising fluorovinylether functionalized aromatic moieties
AssigneeE. I. Du Pont de Nemours and Company
InventorsOwen C. Compton, Neville Everton Drysdale, Fredrik Nederberg, Sonjoo Son, Judith Johanna Van Gorp
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Abstract
Disclosed are copolymers comprising a backbone with olefinic unsaturation and fluorovinylether functionalized aromatic repeat units, and methods to make the copolymers. The copolymers are useful for imparting improved soil, water, and oil resistance to materials including fibers, fabrics, carpets, films, plaques, and shaped articles. The copolymers can be crosslinked and used to form shaped articles with the improved properties.
Claims20
A copolymer comprising a first repeat unit having a backbone and a second repeat unit, wherein said first repeat unit comprises olefinic unsaturation in the backbone thereof, and said second repeat unit is a fluorovinylether functionalized aromatic repeat unit represented by the structure (I)
- wherein,
- Ar represents a benzene or naphthalene radical;
- each R is independently H, C1-C10 alkyl, C5-C15 aryl, C6-C20 arylalkyl;
- OH, or a radical represented by the structure (II)
- with the proviso that only one R can be OH or the radical represented by the structure (II);
- R1 is a C2-C4 alkylene radical which can be branched or unbranched,
- X is O or CF2;
- Z is H, Cl, or Br;
- a=0 or 1;
- and,
- Q represents the structure (Ia)
- wherein q=0-10;
- Y is O or CF2;
- Rf1 is (CF2)n, wherein n is 0-10;
- and,
- Rf2 is (CF2)p, wherein p is 0-10, with the proviso that when p is 0, Y is CF2.
A process comprising combining a fluorovinylether functionalized aromatic diester or diacid, an olefinically unsaturated mono-anhydride, and at least one C2-C4 alkylene glycol, branched or unbranched, to form a reaction mixture, and stirring the reaction mixture to form a copolymer comprising repeat units having the structure (I)
- wherein,
- Ar represents a benzene or naphthalene radical;
- each R is independently H, C1-C10 alkyl, C5-C15 aryl, C6-C20 arylalkyl;
- OH, or a radical represented by the structure (II)
- with the proviso that only one R can be OH or the radical represented by the structure (II);
- R1 is a C2-C4 alkylene radical which can be branched or unbranched,
- X is O or CF2;
- Z is H, Cl, or Br;
- a=0 or 1;
- and,
- Q represents the structure (Ia)
- wherein q=0-10;
- Y is O or CF2;
- Rf1 is (CF2)n, wherein n is 0-10;
- and,
- Rf2 is (CF2)p, wherein p is 0-10, with the proviso that when p is 0, Y is CF2.
- and repeat units having the structure (V)
- wherein R2 is independently H or C1-C10 alkyl;
- and R3 is a C2-C4 alkylene radical;
- wherein the fluorovinyl ether functionalized aromatic diester or diacid is represented by the structure (III)
- wherein,
- Ar represents a benzene or naphthalene radical;
- each R is independently H, C1-C10 alkyl, C5-C15 aryl, C6-C20 arylalkyl;
- OH, or a radical represented by the structure (II)
- with the proviso that only one R can be OH or the radical represented by the structure (II);
- R2 is H or C1-C10 alkyl;
- X is O or CF2;
- Z is H, Cl, or Br;
- a=0 or 1;
- and,
- Q represents the structure (Ia)
- wherein q=0-10;
- Y is O or CF2;
- Rf1 is (CF2)n, wherein n is 0-10;
- and,
- Rf2 is (CF2)p, wherein p is 0-10, with the proviso that when p is 0, Y is CF2.
Dependencies are inferred from the claim text.