Novel Polymer Useful for an Ion Exchange Membrane

Patent metadata

Field	Value
Publication number	US-2016222177-A1
Application number	US-201514757920-A
Country	US
Kind code	A1
Filing date	Dec 23, 2015
Priority date	Dec 23, 2014
Publication date	Aug 4, 2016
Grant date	—

Abstract

The present invention provides for a polymer formed by reacting a first reactant polymer, or a mixture of first reactant polymers comprising different chemical structures, comprising a substituent comprising two or more nitrogen atoms (or a functional group/sidechain comprising a two or more nitrogen atoms) with a second reactant polymer, or a mixture of second reactant polymers comprising different chemical structures, comprising a halogen substituent (or a functional group/sidechain comprising a halogen).

First claim

What is claimed is:

1 . A composition comprising a polymer having chemical structure:

wherein α is a subtituent comprising two or more nitrogen atoms; R1, R2, R3, and R4 are each independently a phenylene oxide, sulfone, imide, ketone, or epichlorohydrin; x and p each is independently an integer having a value ranging from 1 to 1,000; y and q each is independently an integer having a value ranging from 0 to 1,000, or 1 to 1,000; and, m and n each is independently an integer having a value ranging from 1 to 1,000,000.

2 . The composition of claim 1 , wherein R1 and R2 are identical.

3 . The composition of claim 1 , wherein R3 and R4 are identical.

4 . The composition of claim 3 , wherein R1, R2, R3, and R4 are identical.

5 . The composition of claim 1 , wherein y and/or q is 0.

6 . The composition of claim 1 , wherein α is a subtituent comprising a heterocycle structure comprising two or more nitrogen atoms.

7 . The composition of claim 6 , wherein the substituent comprises an imidazole.

8 . The composition of claim 1 , wherein the polymer has the chemical structure:

wherein X − corresponds to any anion.

9 . The composition of claim 8 , wherein X − is a hydroxide anion.

10 . The composition of claim 1 , wherein the polymer is a polyphenyl oxide (PPO) membrane having the chemical structure:

wherein q, r, s, x, y, and z each is independently an mole fraction having a value ranging from 0.001 to 0.999; and m and n each is independently an integer having a value ranging from 1 to 1,000,000.

11 . The composition of claim 1 , wherein the composition comprises a blend of two or more polymers of different chemical structures, wherein each polymer has the chemical structure:

wherein t, u, v, x, y, and z each is independently an mole fraction having a value ranging from 0.001 to 0.999, and m and n each is independently an integer having a value ranging from 1 to 1,000,000.

12 . The composition of claim 1 , wherein the polymer is a polyphenyb oxide (PPO) membrane having the chemical structure:

13 . A method for synthesizing a membrane comprising: (a) reacting a first reactant polymer and a second reactant polymer, optionally (b) converting a precursor polymer into the second reactant polymer, optionally (c) converting the second reactant polymer into the first reactant polymer, wherein steps (b) and (c) occur prior to the reacting step; wherein the first reactant polymer has a chemical structure:

wherein α is a subtituent comprising two or more nitrogen atoms; R1 and R2 are each independently a phenylene oxide, sulfone, imide, ketone, or epichlorohydrin; x is an integer having a value ranging from 1 to 1,000; y is an integer having a value ranging from 0 to 1,000, or 1 to 1,000; and, m is independently an integer having a value ranging from 1 to 1,000,000, and the second reactant polymer has a chemical structure:

wherein R3 and R4 are each independently a phenylene oxide, sulfone, imide, ketone, or epichlorohydrin; β is a halogen substiuent; p is an integer having a value ranging from 1 to 1,000; q is an integer having a value ranging from 0 to 1,000, or 1 to 1,000; and, n is independently an integer having a value ranging from 1 to 1,000,000.

14 . The method of claim 13 , wherein the first reactant polymer has the chemical structure:

15 . The method of claim 13 , wherein R3 and R4 are identical.

16 . The method of claim 13 , wherein q is 0.

17 . The method of claim 13 , wherein β is —(CH 2 ) a -Hal, wherein a is an integer from one to ten, and Hal is a halogen.

18 . The method of claim 17 , wherein a is an integer is one, two, three, or four.

Assignees

• Univ California

Inventors

• Liang Siwei
• Lynd Nathaniel A

Classifications

• B01J41/125

  Operations & Transport · mapped topic

• C25B1/003

  Chemistry & Metallurgy · mapped topic

• C25B1/10

  Chemistry & Metallurgy · mapped topic

• C25B13/08

  based on organic materials · CPC title

• C08J5/2256 Primary

  based on macromolecular compounds obtained by reactions other than those involving carbon-to-carbon bonds, e.g. obtained by polycondensation · CPC title