Method of reversibly making soluble or easily dispersible...

Details Method of reversibly making soluble or easily dispersible... Method of reversibly making soluble or easily dispersible...

C - Chemistry, Metallurgy

08

J

204/201, 18/24,

C08J 9/28 (2006.01) B01D 71/32 (2006.01) B01D 71/40 (2006.01) B01D 71/82 (2006.01) C08F 8/00 (2006.01) C08F 8/12 (2006.01) C08J 5/22 (2006.01) C08J 7/12 (2006.01)

Patent

CA 1096565

ABSTRACT OF THE DISCLOSURE A reversible method is described of making an organic polymer which is substantially insoluble in a polar solvent soluble or easily dispersible therein. The method comprises reacting such a polymer containing at least one Lewis basic or acidic group with a lower alkylene oxide to alkoxylate the Lewis acidic or basic group, dissolving or dispersing the resulting alkoxylated product in a polar solvent, forming the resulting product in a desired form and subjecting the latter to hydrolysis to revert to the original polymer in the desired form. The organic polymers of this invention may be formed into thin self-supporting films or be used to impregnate porous materials to form diaphragms for use in electrolysis cells.

267023

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