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Graft polymeric membranes and ion-exchange membranes formed therefrom

  • US 6,723,758 B2
  • Filed: 08/21/2001
  • Issued: 04/20/2004
  • Est. Priority Date: 11/12/1997
  • Status: Expired due to Fees
First Claim
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1. A membrane comprising a polymeric base film with grafted chains comprising monomer units of formula (IV) embedded imagewherein A1 is para-methyl and A2 is hydrogen;

  • and wherein at least a portion of said monomer units further comprise at least one ion-exchange substituent, thereby rendering said membrane an ion-exchange membrane.

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