Michael L Mcgraw

US Patent:

20210363649, Nov 25, 2021

Filed:

Aug 5, 2021

Appl. No.:

17/394711

Inventors:

- Pierre SD, US
Michael McGraw - Rapid City SD, US
Praveen Kolla - Rapid City SD, US

Assignee:

South Dakota Board of Regents - Pierre SD

International Classification:

C25B 3/00
H01M 4/90
H01M 4/60
C08G 61/12
H01L 51/00
H01G 11/48
H01G 11/86
H01G 9/028
C25B 11/055

Abstract:

The present invention relates to a one-step process for preparation of “in-situ” or “ex-situ” self-organized and electrically conducting polymer nanocomposites using thermally initiated polymerization of a halogenated 3,4-ethylenedioxythiophene monomer or its derivatives. This approach does not require additional polymerization initiators or catalysts, produce gaseous products that are naturally removed without affecting the polymer matrix, and do not leave by-product contaminants. It is demonstrated that self-polymerization of halogenated 3,4-ethylenedioxythiophene monomer is not affected by the presence of a solid-state phase in the form of nanoparticles and results in formation of 3,4-polyethylenedioxythiophene (PEDOT) nanocomposites.

US Patent:

20170241025, Aug 24, 2017

Filed:

Feb 22, 2017

Appl. No.:

15/439585

Inventors:

- Pierre SD, US
Michael McGraw - Rapid City SD, US
Praveen Kolla - Rapid City SD, US

Assignee:

South Dakota Board of Regents - Pierre SD

International Classification:

C25B 3/00
H01M 4/90
H01G 11/86
C08G 61/12
H01L 51/00
H01G 11/48
C25B 11/04
H01M 4/60

Abstract:

The present invention relates to a one-step process for preparation of “in-situ” or “ex-situ” self-organized and electrically conducting polymer nanocomposites using thermally initiated polymerization of a halogenated 3,4-ethylenedioxythiophene monomer or its derivatives. This approach does not require additional polymerization initiators or catalysts, produce gaseous products that are naturally removed without affecting the polymer matrix, and do not leave by-product contaminants. It is demonstrated that self-polymerization of halogenated 3,4-ethylenedioxythiophene monomer is not affected by the presence of a solid-state phase in the form of nanoparticles and results in formation of 3,4-polyethylenedioxythiophene (PEDOT) nanocomposites.