US 11,746,191 B2
Polymers for selective heavy metal removal
Timothy M. Swager, Newton, MA (US); and Wen J. Ong, Cambridge, MA (US)
Assigned to Massachusetts Institute of Technology, Cambridge, MA (US)
Filed by Massachusetts Institute of Technology, Cambridge, MA (US)
Filed on Jul. 24, 2018, as Appl. No. 16/44,001.
Claims priority of provisional application 62/536,768, filed on Jul. 25, 2017.
Prior Publication US 2019/0031832 A1, Jan. 31, 2019
Int. Cl. C08G 75/02 (2016.01); B01J 20/26 (2006.01); B01J 20/28 (2006.01); C08G 75/029 (2016.01); C08G 75/14 (2006.01); C08K 5/01 (2006.01); C08K 5/03 (2006.01); C08K 5/06 (2006.01); C08K 5/08 (2006.01); C08K 5/3417 (2006.01); C08K 5/3492 (2006.01); C08K 5/378 (2006.01); C02F 1/28 (2023.01); C08K 5/07 (2006.01); C02F 1/00 (2023.01); C02F 1/44 (2023.01); C02F 101/20 (2006.01)
CPC C08G 75/02 (2013.01) [B01J 20/267 (2013.01); B01J 20/28016 (2013.01); C02F 1/285 (2013.01); C08G 75/029 (2013.01); C08G 75/14 (2013.01); C08K 5/01 (2013.01); C08K 5/03 (2013.01); C08K 5/06 (2013.01); C08K 5/07 (2013.01); C08K 5/3417 (2013.01); C08K 5/34924 (2013.01); C08K 5/378 (2013.01); C02F 1/001 (2013.01); C02F 1/44 (2013.01); C02F 2101/20 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A cross-linked polymer, comprising:
a plurality of first monomers, a plurality of first cross-linkers, and a plurality of sulfur moieties in the polymer backbone, wherein:
the first monomer is selected from the group consisting of an oligo(methylene sulfide), a poly(methylene sulfide), an oligo(ethylene sulfide), a poly(ethylene sulfide), an oligo(propylene sulfide), and a poly(propylene sulfide; and
the first cross-linker comprises at least two reactive groups selected from the group consisting of an acrylate, an alkene, an alkyne, an azide, a halide, a tosylate, a mesylate, a triflate, an epoxide, and a thiol.