Patent · US Active

Poly(phenylene)-based anion exchange membrane

US7888397B1 · kind B1 · utility

43Cited by

5References

4Claims

0Family size

Assignee

Sandia Corporation · US

Inventors

Michael Hibbs · Albuquerque, US
Christopher Cornelius · Blacksburg, US
Cy Fujimoto · Albuquerque, US

Key dates

Filing date	Apr 30, 2008
Grant date	Feb 15, 2011
Priority date	—
Expiry date	Jan 6, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2365/02
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A poly(phenylene) compound of copolymers that can be prepared with either random or multiblock structures where a first polymer has a repeat unit with a structure of four sequentially connected phenyl rings with a total of 2 pendant phenyl groups and 4 pendant tolyl groups and the second polymer has a repeat unit with a structure of four sequentially connected phenyl rings with a total of 6 pendant phenyl groups. The second polymer has chemical groups attached to some of the pendant phenyl groups selected from CH3, CH2Br, and CH2N(CH3)3Br groups. When at least one group is CH2N(CH3)3Br, the material functions as an anion exchange membrane.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.