Polymeric materials having active cross-linkers, methods for making them, and use thereof

• US 9,920,147 B2
• Filed: 09/08/2014
• Issued: 03/20/2018
• Est. Priority Date: 09/13/2013
• Status: Active Grant

• Current Assignee: Brandeis University
• Original Assignee: Brandeis University
• Inventors: Zhang, Ye, Xu, Bing
• Primary Examiner(s): CHEUNG, WILLIAM K
• Application Number:
  US15/021,394
• Publication Number:
  US 20160222148A1
• Time in Patent Office: 1,289 Days
• Field of Search: 526265, 526259, 5263031
• CPC Class Codes: C07F 15/0053 without a metal-carbon linkage
• CPC Class Codes: C08F 220/54 Amides , e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
• CPC Class Codes: C08F 226/02 by a single or double bond to nitrogen
• CPC Class Codes: C08K 5/0025 Crosslinking or vulcanising agents; including accelerators
• CPC Class Codes: C08K 5/0091 Complexes with metal-heteroatom-bonds
• CPC Class Codes: C08K 5/20 Carboxylic acid amides
• CPC Class Codes: C08L 33/26 Homopolymers or copolymers of acrylamide or methacrylamide

Abstract

The present technology relates to a polymeric material including a plurality of polymer subunits and an active cross-linker, wherein the active cross-linker is covalently linked to the plurality of polymer subunits. The active cross-linker offers a key building block for constructing novel molecular architecture in chemomechanical soft materials and illustrates a new approach to tailor material properties.

Claims

1. A polymeric material comprising:

a plurality of polymer subunits; and

an active cross-linker selected from the group consisting of;

2. The polymeric material according to claim 1, wherein the polymeric material is selected from the group consisting of a gel, an elastomer, a rubber, a film, a foam, an aerogel, and a sponge.

3. The polymeric material according to claim 1, wherein the polymer subunits are selected from the group consisting of monomers, oligomers, and combinations thereof.

4. The polymeric material according to claim 1, wherein the active cross-linker is selected from the group consisting of

5. The polymeric material according to claim 1, wherein the active cross-linker is selected from the group consisting of

6. The polymeric material according to claim 1, wherein the molar ratio of the polymer subunit to the active cross-linker is from about 1:

1 to about 1×

10⁸;

1.

7. The polymeric material according to claim 6, wherein the molar ratio of the polymer subunit to the active cross-linker is about 1:

0.004.

8. A chemomechanical material comprising a polymeric material according to claim 1,

wherein the active cross-linker is covalently linked to the plurality of polymer subunits to form a stimuli responsive shape changing polymeric network.

9. The chemomechanical material according to claim 8 selected from the group consisting of a biomedical product, a cosmetic product, and an actuator.

10. A compound having the formula:

11. The compound according to claim 10, wherein the compound is selected from the group consisting of:

12. A compound of the formulae: