Modified sulfonamide polymers
AssigneeOsmonics, Inc.
InventorsChristopher J. Kurth, Steven D. Kloos, Jessica A. Peschl, Leonard T. Hodgins
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Abstract
The invention provides secondary sulfonamide polymers, wherein some, most, or all of the sulfonamido protons have been replaced with a substituent other than hydrogen. The invention also provides methods for preparing such polymers as well as devices (e.g. composite membranes) incorporating such membranes.
Claims13
A method for preparing a secondary sulfonamide polymer, the method comprising, replacing one or more sulfonamido protons of a corresponding primary sulfonamide polymer with a substituent other than hydrogen;
- provided the primary sulfonamide polymer is not derived or derivable from a branched or unbranched polyalkylamine having greater than 35 repeating monomeric alkylamine units.
A membrane comprising a secondary sulfonamide polymer, wherein the secondary sulfonamide polymer backbone does not comprise polyalkylamine segments having greater than 35 repeating monomeric alkylamine units.
Dependencies are inferred from the claim text.