Post polymerization modification in flow

Patent metadata

Field	Value
Publication number	US-11518849-B2
Application number	US-202016882028-A
Country	US
Kind code	B2
Filing date	May 22, 2020
Priority date	May 22, 2020
Publication date	Dec 6, 2022
Grant date	Dec 6, 2022

Abstract

Techniques regarding post polymerization modifications to polycarbonate polymers via a flow reactor are provided. For example, one or more embodiments described herein can comprise a cyclic carbonate monomer that can be employed to facilitate polymerization of one or more polycarbonate platforms susceptible to post polymerization modification. For instance, one or more embodiments can regard a cyclic carbonate molecular backbone covalently bonded to an aryl halide functional group via in accordance with a chemical structure selected from the group consisting of:In the chemical structures, “R1” can be selected from the group consisting of a hydrogen atom and a functional group comprising a first alkyl group; “L” can represent a linkage group, comprising: a second alkyl group and an end group having at least one member selected from the group consisting of an oxygen atom and a nitrogen atom; and “A” can represent the aryl halide functional group.

First claim

What is claimed is:

1. A monomer, comprising:
a cyclic carbonate molecular backbone covalently bonded to an aryl halide functional group in accordance with a chemical structure selected from a first group consisting of:

wherein R 1 is selected from a second group consisting of a hydrogen atom and a first alkyl group;
wherein A is the aryl halide functional group, and has a structure selected from a third group consisting of:

wherein X is a halide atom;
wherein Y is an atom selected from a fourth group consisting of an oxygen atom, a nitrogen atom, and a sulfur atom; and
wherein n is an integer greater than or equal to 2 and less than or equal to 8.

2. The monomer of claim 1 , wherein the first alkyl group comprises greater than or equal to one carbon atom and less than or equal to three carbon atoms.

3. The monomer of claim 1 , wherein
X is the halide atom of fluorine.

4. The monomer of claim 1 , wherein the cyclic carbonate molecular backbone is covalently bonded to the aryl halide functional group in accordance with chemical structure:

5. The monomer of claim 1 , wherein the cyclic carbonate molecular backbone is covalently bonded to the aryl halide functional group in accordance with chemical structure:

6. A monomer, comprising:
a cyclic carbonate molecular backbone covalently bonded to an aryl halide functional group in accordance with chemical structure:

wherein R 1 is selected from a first group consisting of a hydrogen atom and a first alkyl group;
wherein L is an alkylene group with an end group selected from O or NH, wherein the end group is linked to A; and
wherein A is the aryl halide functional group, and has a structure selected from a second group consisting of:

wherein X is a halide atom;
wherein Y is an atom selected from a third group consisting of an oxygen atom, a nitrogen atom, and a sulfur atom; and
wherein n is an integer greater than or equal to 2 and less than or equal to 8.

7. The monomer of claim 6 , wherein the first alkyl group comprises greater than or equal to one carbon atom and less than or equal to three carbon atoms, and wherein the alkylene group comprises greater than or equal to one carbon atom and less than or equal to twenty carbon atoms.

8. The monomer of claim 6 , wherein X is the halide atom of fluorine.

9. The monomer of claim 6 , wherein X is the halide atom of chlorine.

10. The monomer of claim 6 , wherein X is the halide atom of bromine.

11. The monomer of claim 6 , wherein X is the halide atom of iodine.

12. The monomer of claim 6 , with the chemical structure comprising:

13. The monomer of claim 6 , with the chemical structure comprising:

14. The monomer of claim 6 , with the chemical structure comprising:

15. The monomer of claim 6 , with the chemical structure comprising:

16. The monomer of claim 6 , with the chemical structure comprising:

17. The monomer of claim 6 , with the chemical structure comprising:

18. The monomer of claim 1 , wherein X is the halide atom of chlorine.

19. The monomer of claim 1 , wherein X is the halide atom of bromine.

20. The monomer of claim 1 , wherein X is the halide atom of iodine.

Assignees

• IBM
• Agency Science Tech & Res

Inventors

• Park Nathaniel H
• Piunova Victoria A
• Zubarev Dmitry
• Hedrick James L
• Yang Yi Yan
• Tan Eddy Wei Ping

Classifications

• B01J2219/00867

  Microreactors placed in series, on the same or on different supports · CPC title

• C08G64/1633

  containing halogens · CPC title

• C08G64/30

  using carbonates · CPC title

• C08G64/025

  containing sulfur · CPC title

• B01J2219/00795

  Spiral-shaped · CPC title