Polyelectrolyte membranes derived from soluble...

Details Polyelectrolyte membranes derived from soluble... Polyelectrolyte membranes derived from soluble...

2011-08-02

2011-08-02

Lipman, Bernard (Department: 1762)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

C526S250000, C526S252000, C526S253000, C526S254000, C525S326200

Reexamination Certificate

active

07989512

ABSTRACT:
A method of forming an ionomeric membrane includes a step of reacting a first polymer in chlorosulfonic acid to form a first precipitate. The first precipitate comprising a polymer including a polymer unit having at least one —SO2Cl moiety attached thereto and includes a step of dissolving the first precipitate in a polar aprotic solvent to form the first solution. A polymeric membrane is then formed from the first solution such that the membrane includes the polymer unit having at least one —SO2Cl. The polymer including a polymer unit a polymer unit having at least one —SO2Cl is then reacted with a nucleophilic compound to form the polymeric membrane.

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