Polymer, copolymer, ink, ink container, image forming method, image forming device, and backsheet for solar cell
A polymer having a structural unit represented by the following Chemical Formula 1, where R 1 represents hydrogen or a methyl group, L 1 represents —COO—, —CONH—, or a single bond, X represents a hydrocarbon group having 2 to 10 carbon atoms or a hydrocarbon group having 2 to 10 carbon atoms and containing oxygen, L 2 represents —O— or —NH—, Y represents a hydrocarbon group having 2 to 12 carbon atoms, and L 3 represents —NH—C 2 H 4 —R 2 , —O-Ph-CH 2 CH(R 2 ) 2 , or —O—Np—CH 2 CH(R 2 ) 2 , where Ph represents a phenylene group, Np represents a naphthylene group, and R 2 represents a phosphonic acid group.
1 . A polymer having a structural unit represented by the following Chemical Formula 1,
where R 1 represents hydrogen or a methyl group, L 1 represents —COO—, —CONH—, or a single bond, X represents a hydrocarbon group having 2 to 10 carbon atoms or a hydrocarbon group having 2 to 10 carbon atoms and containing oxygen, L 2 represents —NH—, Y represents a hydrocarbon group having 2 to 12 carbon atoms, and L 3 represents —NH—C 2 H 4 —R 2 , —O-Ph-CH 2 CH(R 2 ) 2 , or —O—Np—CH 2 CH(R 2 ) 2 , where Ph represents a phenylene group, Np represents a naphthylene group, and R 2 represents a phosphonic acid group.
2 . A copolymer having the structural unit represented by the Chemical Formula 1 of claim 1 and a structural unit represented by the following Chemical Formula 2,
where R 3 represents hydrogen or a methyl group and X represents a proton or a cation.
3 . An ink comprising:
water;
a coloring material; and
a resin comprising at least one of the polymer of claim 1 or a copolymer having the structural unit represented by the Chemical Formula 1 and a structural unit represented by the following Chemical Formula 2,
where R 3 represents hydrogen or a methyl group and X + represents a proton or a cation.
4 . The ink according to claim 3 , wherein the polymer or the copolymer has a weight average molecular weight of from 5,000 to 50,000.
5 . The ink according to claim 3 , wherein the coloring material comprises titanium oxide.
6 . An ink container containing the ink of claim 3 .
7 . An image forming device comprising:
an ink container containing the ink of claim 3 ; and
a discharging device configured to discharge the ink to a printing medium.
8 . An image forming method comprising:
discharging the ink of claim 3 to a printing medium to form an image thereon.
9 . A backsheet for a solar cell comprising:
a protection layer comprising titanium oxide and resin,
wherein the resin comprises at least one of the polymer of claim 1 or a copolymer having the structural unit represented by the Chemical Formula 1 and a structural unit represented by the following Chemical Formula 2,
where R 3 represents hydrogen or a methyl group and X + represents a proton or a cation.