Monomers and polymers formed thereby
Monomers, polymers, or oligomers formed therefrom and methods of forming or utilizing monomers of formula I where R 1 is a C 1 to C 4 alkyl; and X is —OH; —OM where M is lithium (Li), sodium (Na), or potassium (K), NH 4 + , R 5 NH 3 + , R 5 2 NH 2 + , R 5 3 NH + , R 5 4 N + where R 5 can independently be selected from alkyl, benzyl, and combinations thereof; —OR 2 where R 2 can be a C 1 to C 4 alkyl, 2-ethylhexyl, or a hydrocarbon moiety of bio-renewable alcohol or a hydrogenated derivative thereof; —NR 3 R 4 , —NR 3 —NR 3 R 4 , —NR 3 —OR 4 where R 3 and R 4 can independently be H, a C 1 to C 4 alkyl, or combinations thereof.
1. A polymer formed from one or more monomers of formula I
wherein R 1 is a C 1 to C 4 alkyl; and
X is —OR 2 where R 2 is a C 1 to C 4 alkyl, 2-ethylhexyl, or a hydrocarbon moiety of bio-renewable alcohol or a hydrogenated derivative thereof.
2. The polymer according to claim 1 , wherein R 1 is a methyl group, an ethyl group, a propyl group, an n-butyl group, or a t-butyl group.
3. The polymer according to claim 1 , wherein R 2 is a C 1 to C 4 alkyl.
4. The polymer according to claim 1 , wherein R 2 is 2-ethylhexyl.
5. The polymer according to claim 1 , wherein R 2 is a hydrocarbon moiety of bio-renewable alcohol or a hydrogenated derivative thereof.
6. The polymer according to claim 1 , wherein the monomer according to formula I is polymerized with a secondary monomer not of formula I.
7. The polymer according to claim 1 , wherein the monomer of formula I is co-polymerized with the acid of the monomer of formula I.
8. The polymer according to claim 1 , wherein the polymer is crosslinked.
9. The polymer according to claim 1 , wherein the polymer is a hydrogel and can hold at least about 100 times its weight in water.
10. The polymer according to claim 6 , wherein the secondary monomer is selected from isoprene, butadiene, styrene, sorbic acid (or its alkali metal salts), a sorbate ester, (meth)acrylic acid (or its alkali metal salts), (meth)acrylate ester, or combinations thereof.