US 11,891,481 B2
Poly(aryl ether) based polymers and associated gas separation membranes
Timothy Manning Swager, Newton, MA (US); Zachary Smith, Belmont, MA (US); Francesco Maria Benedetti, Urbania (IT); and Sheng Guo, Brookline, MA (US)
Assigned to Massachusetts Institute of Technology, Cambridge, MA (US)
Filed by Massachusetts Institute of Technology, Cambridge, MA (US)
Filed on Jun. 24, 2021, as Appl. No. 17/357,252.
Claims priority of provisional application 63/155,697, filed on Mar. 2, 2021.
Prior Publication US 2022/0282041 A1, Sep. 8, 2022
Int. Cl. B01D 53/22 (2006.01); C08G 65/40 (2006.01); C08G 65/48 (2006.01); C08J 5/18 (2006.01); B01D 71/52 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01)
CPC C08G 65/4075 (2013.01) [B01D 53/228 (2013.01); B01D 67/0006 (2013.01); B01D 67/0093 (2013.01); B01D 69/02 (2013.01); B01D 71/52 (2013.01); C08G 65/4087 (2013.01); C08G 65/485 (2013.01); C08J 5/18 (2013.01); B01D 2325/20 (2013.01); B01D 2325/34 (2013.01); C08G 2650/36 (2013.01); C08J 2371/12 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of making a gas separation membrane comprising a poly(aryl ether), comprising:
providing a first prepolymer comprising a monomer of a formula (X)x—Ar—(OH)y, wherein Ar comprises at least one aryl or heteroaryl group, X is a halogen or a halogen equivalent, each X is the same or different, and x+y is at least two;
providing a second prepolymer comprising a comonomer of a formula (X)x—Ar′—(OH)y wherein Ar′ comprises at least one aryl or heteroaryl group, X is a halogen or a halogen equivalent, each X is the same or different, and x+y is at least two;
providing a catalyst;
providing a base;
reacting the first prepolymer with the second prepolymer in the presence of the catalyst and the base to provide the poly(aryl ether); and
forming the gas separation membrane.