US 6,982,303 B2 | ||
Covalently cross-linked polymers and polymer membranes via sulfinate alkylation | ||
Jochen Kerres, Asternweg 11, Ostfildern 73760 (Germany); Wei Zhang, Schwarzwaldstr. 12, Stuttgart 70569 (Germany); Chy-Ming Tang, Hölderlinstr. 11, Weinheim 69469 (Germany); and Thomas Häring, Feigenweg 15, Stuttgart 70619 (Germany) | ||
Filed on Jun. 19, 2002, as Appl. No. 10/173,830. | ||
Application 10/173830 is a continuation in part of application No. 10/051196, filed on Jan. 22, 2002, abandoned. | ||
Application 10/051196 is a continuation of application No. PCT/EP01/05826, filed on May 21, 2001. | ||
Claims priority of application No. 100 24 575 (DE), filed on May 19, 2000; and application No. 100 54 233 (DE), filed on Nov. 02, 2000. | ||
Prior Publication US 2003/0032739 A1, Feb. 13, 2003 | ||
Int. Cl. C08F 283/00 (2006.01); C08G 75/00 (2006.01); C08L 81/00 (2006.01) |
U.S. Cl. 525—535 | 20 Claims |
1. A covalently cross-linked polymer, polymer blend, or covalently cross-linked polymer membrane comprising one or more polymers
which optionally have the following functional groups
a) precursors of cation exchange groups selected from the group consisting of SO2M, POM2, COM, or mixtures thereof,
b) sulfinate groups SO2Me, or mixtures thereof where M is independently Hal, OR, NR2, Hal is F, Cl, Br, I, R is independently alkyl, hydroxyalkyl, aryl; X is independently Hal, OR, Y, and Me is independently
H, Li, Na, K, Cs, a metal cation, or an ammonium ion,
where at least some of the polymers are covalently cross-linked by
c) a difunctional, trifunctional or oligofunctional haloalkane or haloaromatic, which has been reacted with sulfinate groups
SO2Me, and
where the following cross-linking bridges are present in the polymer/polymer blend/polymer membrane:
polymer-SO2—Y—SO2-polymer where Y is the crosslinking bridge —(CH2)x—, -arylene-, —(CH2)x-arylene-, —CH2-arylene-CH2—, and x is 3-12); and/or
polymer-SO2—(CH2)x—NR—SO2-polymer where compounds containing Hal-(CH2)x—NHR, which have been reacted on the Hal- side with sulfinate groups SO2Me and on the —NHR side with SO2M- groups; and/or
polymer-SO2—NR—(CH2)x—NR—SO2-polymer where compounds containing the group NHR—(CH2)x—NHR, which have been reacted with SO2Me groups.
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