公开(公告)号：US11970590B2

公开(公告)日：2024-04-30

申请号：US18097986

申请日：2023-01-17

Applicant: Simon Fraser University

Inventor： Steven Holdcroft ,  Thomas J. G. Skalski ,  Michael Adamski ,  Benjamin Britton ,  Timothy J. Peckham

IPC: C08J5/22 ,  B01D69/02 ,  B01D71/82 ,  C07C211/63 ,  C07C309/44 ,  C08G61/10 ,  H01M8/10 ,  H01M8/1023

CPC classification number: C08J5/2256 ,  B01D69/02 ,  B01D71/82 ,  C07C211/63 ,  C07C309/44 ,  C08G61/10 ,  H01M8/1023 ,  B01D2325/42 ,  C08G2261/11 ,  C08G2261/1452 ,  C08G2261/148 ,  C08G2261/228 ,  C08G2261/312 ,  C08J2365/02 ,  H01M2008/1095

Abstract: Described herein are anionic phenylene oligomers and polymers, and devices including these materials. The oligomers and polymers can be prepared in a convenient and well-controlled manner, and can be used in cation exchange membranes. Also described is the controlled synthesis of anionic phenylene monomers and their use in synthesizing anionic oligomers and polymers, with precise control of the position and number of anionic groups.

公开(公告)号：US20230159716A1

公开(公告)日：2023-05-25

申请号：US18097986

申请日：2023-01-17

Applicant: Simon Fraser University

Inventor： Steven Holdcroft ,  Thomas J.G. Skalski ,  Michael Adamski ,  Benjamin Britton ,  Timothy J. Peckham

IPC: C08J5/22 ,  B01D69/02 ,  B01D71/82 ,  C07C211/63 ,  C07C309/44 ,  C08G61/10 ,  H01M8/1023

CPC classification number: C08J5/2256 ,  B01D69/02 ,  B01D71/82 ,  C07C211/63 ,  C07C309/44 ,  C08G61/10 ,  H01M8/1023 ,  B01D2325/42 ,  C08G2261/11 ,  C08G2261/1452 ,  C08G2261/148 ,  C08G2261/228 ,  C08G2261/312 ,  C08J2365/02 ,  H01M2008/1095

Abstract: Described herein are anionic phenylene oligomers and polymers, and devices including these materials. The oligomers and polymers can be prepared in a convenient and well-controlled manner, and can be used in cation exchange membranes. Also described is the controlled synthesis of anionic phenylene monomers and their use in synthesizing anionic oligomers and polymers, with precise control of the position and number of anionic groups.

公开(公告)号：US20190382353A1

公开(公告)日：2019-12-19

申请号：US16321414

申请日：2017-07-29

Applicant: Simon Fraser University

Inventor： Steven Holdcroft ,  Jiantao Fan ,  Andrew Wright ,  Benjamin Britton ,  Thomas Weissbach ,  Timothy James Peckham ,  Jonathan William Ward

IPC: C07D233/64 ,  A61P31/00

Abstract: Provided herein are imidazolium polymers having steric hindrance at the 4-position of the imidazole moieties in the polymeric chain. The sterically-protected, N-methylated imidazolium polymers exhibit hydroxide stability in concentrated caustic solutions at elevated temperatures, such as at 100° C. and higher.

公开(公告)号：US20240117132A1

公开(公告)日：2024-04-11

申请号：US18464836

申请日：2023-09-11

Applicant: Simon Fraser University

Inventor： Steven Holdcroft ,  Thomas J.G. Skalski ,  Michael Adamski ,  Benjamin Britton ,  Timothy J. Peckham

IPC: C08J5/22 ,  B01D69/02 ,  B01D71/82 ,  C07C211/63 ,  C07C309/44 ,  C08G61/10 ,  H01M8/1023

CPC classification number: C08J5/2256 ,  B01D69/02 ,  B01D71/82 ,  C07C211/63 ,  C07C309/44 ,  C08G61/10 ,  H01M8/1023 ,  B01D2325/42 ,  C08G2261/11 ,  C08G2261/1452 ,  C08G2261/148 ,  C08G2261/228 ,  C08G2261/312 ,  C08J2365/02 ,  H01M2008/1095

Abstract: Described herein are anionic phenylene oligomers and polymers, and devices including these materials. The oligomers and polymers can be prepared in a convenient and well-controlled manner, and can be used in cation exchange membranes. Also described is the controlled synthesis of anionic phenylene monomers and their use in synthesizing anionic oligomers and polymers, with precise control of the position and number of anionic groups.

公开(公告)号：US11230626B2

公开(公告)日：2022-01-25

申请号：US16322920

申请日：2017-08-01

Applicant: Simon Fraser University

Inventor： Steven Holdcroft ,  Thomas Weissbach ,  Timothy James Peckham ,  Andrew Wright ,  Benjamin Britton

IPC: C08G73/18 ,  C08J3/24 ,  C08J5/22 ,  C08L79/04 ,  C25B1/04 ,  C25B13/08 ,  C25B9/73 ,  H01M8/1018 ,  H01M8/103

Abstract: Described herein are crosslinked alkylated poly(benzimidazole) and poly(imidazole) polymer materials and devices (e.g., fuel cells, water electrolyzers) including these polymer materials. The polymer materials can be prepared in a convenient manner, allowing for applications such as anion exchange membranes (AEMs). The membranes provide high anion conductivities over a wider range of operating conditions when compared to the analogous membranes that are not cross-linked. The crosslinked polymer materials have improved alkaline stability, when compared to the analogous non-crosslinked polymer materials.

公开(公告)号：US12084554B2

公开(公告)日：2024-09-10

申请号：US18464836

申请日：2023-09-11

Applicant: Simon Fraser University

Inventor： Steven Holdcroft ,  Thomas J. G. Skalski ,  Michael Adamski ,  Benjamin Britton ,  Timothy J. Peckham

IPC: C08J5/22 ,  B01D69/02 ,  B01D71/82 ,  C07C211/63 ,  C07C309/44 ,  C08G61/10 ,  H01M8/10 ,  H01M8/1023

CPC classification number: C08J5/2256 ,  B01D69/02 ,  B01D71/82 ,  C07C211/63 ,  C07C309/44 ,  C08G61/10 ,  H01M8/1023 ,  B01D2325/42 ,  C08G2261/11 ,  C08G2261/1452 ,  C08G2261/148 ,  C08G2261/228 ,  C08G2261/312 ,  C08J2365/02 ,  H01M2008/1095

Abstract: Described herein are anionic phenylene oligomers and polymers, and devices including these materials. The oligomers and polymers can be prepared in a convenient and well-controlled manner, and can be used in cation exchange membranes. Also described is the controlled synthesis of anionic phenylene monomers and their use in synthesizing anionic oligomers and polymers, with precise control of the position and number of anionic groups.

公开(公告)号：US20190169372A1

公开(公告)日：2019-06-06

申请号：US16322920

申请日：2017-08-01

Applicant: Simon Fraser University

Inventor： Steven Holdcroft ,  Thomas Weissbach ,  Timothy James Peckham ,  Andrew Wright ,  Benjamin Britton

IPC: C08G73/18 ,  C08J3/24 ,  C08J5/22 ,  H01M8/103 ,  C25B13/08 ,  C25B1/10

Abstract: Described herein are crosslinked alkylated poly(benzimidazole) and poly(imidazole) polymer materials and devices (e.g., fuel cells, water electrolyzers) including these polymer materials. The polymer materials can be prepared in a convenient manner, allowing for applications such as anion exchange membranes (AEMs). The membranes provide high anion conductivities over a wider range of operating conditions when compared to the analogous membranes that are not cross-linked. The crosslinked polymer materials have improved alkaline stability, when compared to the analogous non-crosslinked polymer materials.

公开(公告)号：US11802187B2

公开(公告)日：2023-10-31

申请号：US16603785

申请日：2018-04-10

Applicant: Simon Fraser University

Inventor： Steven Holdcroft ,  Thomas J. G. Skalski ,  Michael Adamski ,  Benjamin Britton ,  Timothy J. Peckham

IPC: C08J5/22 ,  B01D69/02 ,  B01D71/82 ,  C07C211/63 ,  C07C309/44 ,  C08G61/10 ,  H01M8/1023 ,  H01M8/10

CPC classification number: C08J5/2256 ,  B01D69/02 ,  B01D71/82 ,  C07C211/63 ,  C07C309/44 ,  C08G61/10 ,  H01M8/1023 ,  B01D2325/42 ,  C08G2261/11 ,  C08G2261/148 ,  C08G2261/1452 ,  C08G2261/228 ,  C08G2261/312 ,  C08J2365/02 ,  H01M2008/1095

Abstract: Described herein are anionic phenylene oligomers and polymers, and devices including these materials. The oligomers and polymers can be prepared in a convenient and well-controlled manner, and can be used in cation exchange 5 membranes. Also described is the controlled synthesis of anionic phenylene monomers and their use in synthesizing anionic oligomers and polymers, with precise control of the position and number of anionic groups.

公开(公告)号：US11299464B2

公开(公告)日：2022-04-12

申请号：US16321414

申请日：2017-07-29

Applicant: Simon Fraser University

Inventor： Steven Holdcroft ,  Jiantao Fan ,  Andrew Wright ,  Benjamin Britton ,  Thomas Weissbach ,  Timothy James Peckham ,  Jonathan William Ward

IPC: C07D233/64 ,  A61P31/00

Abstract: Provided herein are imidazolium polymers having steric hindrance at the 4-position of the imidazole moieties in the polymeric chain. The sterically-protected, N-methylated imidazolium polymers exhibit hydroxide stability in concentrated caustic solutions at elevated temperatures, such as at 100° C. and higher.

公开(公告)号：US20190202991A1

公开(公告)日：2019-07-04

申请号：US16098827

申请日：2017-05-01

Applicant: Simon Fraser University

Inventor： Steven Holdcroft ,  Benjamin Britton ,  Andrew Wright

IPC: C08G73/18 ,  H01M4/86 ,  H01M4/92 ,  H01M4/96 ,  H01M8/103 ,  H01M8/1088 ,  H01M8/1004 ,  H01M8/04089 ,  H01M8/04291 ,  H01M8/04228 ,  H01M8/04701 ,  C25B1/10 ,  C25B9/10 ,  H01M8/04303

CPC classification number: C08G73/18 ,  B01J31/00 ,  C25B1/06 ,  C25B1/10 ,  C25B9/10 ,  C25B13/08 ,  H01M4/8668 ,  H01M4/90 ,  H01M4/92 ,  H01M4/925 ,  H01M4/926 ,  H01M4/96 ,  H01M8/04089 ,  H01M8/04228 ,  H01M8/04291 ,  H01M8/04303 ,  H01M8/04701 ,  H01M8/1004 ,  H01M8/103 ,  H01M8/1088 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/366

Abstract: Described herein are stable hydroxide ion-exchange polymers and devices including the stable hydroxide ion-exchange N polymers. The polymers include ionenes, which are polymers that contain ionic amines in the backbone. The polymers are alcohol-soluble and water-insoluble. The polymers have a water uptake and an ionic conductivity that are correlated to a degree of N-substitution. Methods of forming the polymers and membranes including the polymers are also provided. The polymers are suitable, for example, for use as ionomers in catalyst layers for fuel cells and electrolyzers.