Polymers and uses thereof

Patent metadata

Field	Value
Publication number	US-11034788-B2
Application number	US-201815875907-A
Country	US
Kind code	B2
Filing date	Jan 19, 2018
Priority date	Jan 20, 2017
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

The present invention provides polymers and methods of preparing the same. In certain embodiments, the polymers comprise acrylate repeating units that have been derivatized (e.g., reduced and/or substituted) to form new polymeric structures. In certain embodiments, the polymers described herein self-assemble to form well-defined nanostructures. In some instances, the nanostructures exhibit relatively small d-spacing (e.g., a d-spacing value of 10 nm or less). Due to their properties, the polymers described herein are useful in a variety of applications including functional materials and biomedical applications.

First claim

What is claimed is:

1. A block copolymer, wherein at least one of the polymer blocks comprises repeating units of the following formula:

wherein:
R 1 , R 2 , and R 3 are independently hydrogen, halogen, optionally substituted alkyl, optionally substituted carbocyclyl, optionally substituted heterocyclyl, optionally substituted aryl, or optionally substituted heteroaryl; and
wherein the block copolymer comprises a second polymer block, wherein the second polymer block comprises repeating units of the following formula:

2. The block copolymer of claim 1 , wherein the block copolymer is of the following formula:

wherein:
T 1 and T 2 are independently terminal groups selected from the group consisting of hydrogen, halogen, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted heteroalkyl, optionally substituted carbocyclyl, optionally substituted heterocyclyl, optionally substituted aryl, optionally substituted heteroaryl, and optionally substituted acyl; and
n and m are independently integers from 2 to 2000, inclusive.

3. The block copolymer of claim 1 , wherein each of R 1 and R 2 is hydrogen.

4. The block copolymer of claim 1 , wherein R 3 is hydrogen or optionally substituted C 1-6 alkyl.

5. The block copolymer of claim 2 , wherein n is from 2-200, inclusive.

6. The block copolymer of claim 2 , wherein m is from 2-200, inclusive.

7. The block copolymer of claim 1 , wherein the block copolymer has a lamellae, hexagonal cylinder, or body centered cubic morphology.

8. The block copolymer of claim 1 , wherein the block copolymer has a d-spacing value from 1-50 nm.

9. The block copolymer of claim 1 , wherein at least one of the polymer blocks comprises repeating units of the following formula:

10. The block copolymer of claim 1 , wherein at least one of the polymer blocks comprises repeating units of the following formula:

11. The block copolymer of claim 1 , wherein the block copolymer is PPOH-b-PtBS.

12. The block copolymer of claim 1 , wherein the block copolymer has a d-spacing value of 10 nm or less.

13. The block copolymer of claim 1 , wherein the block copolymer is a diblock copolymer.

14. The block copolymer of claim 4 , wherein R 3 is hydrogen or unsubstituted C 1-3 alkyl.

15. The block copolymer of claim 3 , wherein R 3 is hydrogen or unsubstituted C 1-3 alkyl.

16. A functional material comprising the block copolymer of claim 1 .

17. A method of using the block copolymer of claim 1 in a biomedical application.

18. A drug delivery system comprising the block copolymer of claim 1 .

19. A composition comprising the block copolymer of claim 1 and one or more carriers.

Assignees

• Massachusetts Inst Technology

Inventors

• Johnson Jeremiah A
• Chen Mao
• Zhang Wenxu

Classifications

• C08F2/38

  Polymerisation using regulators, e.g. chain terminating agents {, e.g. telomerisation} · CPC title

• C08F8/04

  Reduction, e.g. hydrogenation · CPC title

• C08F212/08

  Styrene · CPC title

• C08F2438/03

  Use of a di- or tri-thiocarbonylthio compound, e.g. di- or tri-thioester, di- or tri-thiocarbamate, or a xanthate as chain transfer agent, e.g . Reversible Addition Fragmentation chain Transfer [RAFT] or Macromolecular Design via Interchange of Xanthates [MADIX] · CPC title

• C08F4/06

  Metallic compounds other than hydrides and other than metallo-organic compounds; Boron halide or aluminium halide complexes with organic compounds containing oxygen · CPC title