Composites for chemical sequestration decontamination

Patent metadata

Field	Value
Publication number	US-11433371-B2
Application number	US-201916361940-A
Country	US
Kind code	B2
Filing date	Mar 22, 2019
Priority date	Mar 23, 2018
Publication date	Sep 6, 2022
Grant date	Sep 6, 2022

Abstract

Materials for decontamination of compounds having a phosphorous-sulfur bond or a phosphorous-oxygen bond. A porous polymer, such as poly(dicyclopentadiene), contains particles of zirconium hydroxide. The polymer optionally has hydroperoxide groups.

First claim

What is claimed is:

1. A composition comprising:
particles comprising zirconium hydroxide; and
a poly(dicyclopentadiene) produced by ring-opening metathesis polymerization.

2. The composition of claim 1 , wherein the poly(dicyclopentadiene) comprises hydroperoxide groups.

3. The composition of claim 1 , wherein the poly(dicyclopentadiene) comprises pores.

4. The composition of claim 3 , wherein the pores are produced by high internal phase emulsion templating.

5. A method comprising:
providing the composition of claim 1 ; and
exposing the composition to a gas suspected of comprising a compound having a phosphorous-sulfur bond or a phosphorous-oxygen bond.

6. The method of claim 5 , wherein the compound is O,O-diethyl S-2-(ethylsulfanyl)ethyl phosphorothioate, 2-chloroethyl ethyl sulfide, or ethyl ({2-[bi s(propan-2-yl)amino] ethyl sulfanyl)(methyl)phosphinate.

7. A method comprising:
providing an emulsion comprising:
a dicyclopentadiene;
particles comprising zirconium hydroxide; and
water; and

polymerizing the dicyclopentadiene by ring-opening metathesis polymerization to form a porous polymer embedded with the zirconium hydroxide particles.

8. The method of claim 7 , further comprising:
exposing the polymer to oxygen to form hydroperoxide groups on the polymer.

Assignees

• Us Gov Sec Navy

Inventors

• Lundin Jeffrey G
• Mcgann Christopher L
• Giles Spencer L
• Daniels Grant
• Balow Robert B
• Miranda-Zayas Jorge L
• Wynne James H

Classifications

• B01J20/28026

  Particles within, immobilised, dispersed, entrapped in or on a matrix, e.g. a resin · CPC title

• B01J20/261

  obtained by reactions only involving carbon to carbon unsaturated bonds (macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds per se C08F) · CPC title

• A62D3/38

  by oxidation; by combustion · CPC title

• A62D3/35

  by hydrolysis · CPC title

• B01J20/3085

  Chemical treatments not covered by groups B01J20/3007 - B01J20/3078 · CPC title