Dynamically formed hydrous zirconium (IV) oxide-polyelectrolyte membranes. III. Poly(acrylic acid) and substituted poly(acrylic acid) homo, co and terpolymer membranes

van Reenen A.J. ; Sanderson R.D. (1989)


A series of acrylic acid and substituted acrylic acid homo, co and terpolymers was synthesised. These polymers were used as polyelectrolytes in dynamically formed hydrous zirconium (iv) oxide-polyelectrolyte membranes. Substitution of the acrylic acid α-hydrogen was done to increase the number of carboxylic acid groups per monomer unit and to change the acid strength of acrylic acid carboxylic acid group. None of these changes improved the salt rejection of these membranes over that of commercially used poly(acrylic acid). Improvement in rejection was found when a hydrophobic comonomer, vinyl acetate, was used in conjunction with acrylic acid in a copolymer dynamic membrane.

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