Cationic vinyl-pyridine copolymers and products thereof
Abstract
Abstract QUATERNIZED, COSS-LINKAGE, INSOLUBLE COPOLYMERS OF UNSUBSUBSTITUTED AND SBSTITUTED VINYL PYRIDINES AND A DIHALO ORGAINC COMPOUNDS ARE SPONTANEOUSLY FORMED AT AMBIENT TEMPERATURE ON MIXING THE TWO MONOMERS IN BULK, IN SOLUTION OR IN SUSPENSION. THE AMOUNT OF CROSS-LINKING MAY BE VARIED ACCORDING TO THE COMPOSITION AND REACTION CNDITIONS. THE POLYMER PRODUCT EXHIBITS ION EXCHAGE CAPACITY AND UNDERGOES A REVERSIBLE COLOR CHANGE FROM BLACK AT A PH ABOVE 7 TO YELLOW AT A PH BELOW 7. THE POLYMER MAY BE FORMED IN THE PRESENCE OF PERFORMED POLYMERS, SUBSTRATES SUCH AS POROUS OR IMPERIOUS PARTICLES OR FILMS TO DEPOSIT AN ION EXCHANGE FILM IN SITU OR ON THE SURFACE OF THESUBSTRATE. THE COATED OR RESIN IMPREGNATED SUBSTRATE MAY BE UTILIZED FOR SEPARATION OF ANIONIC SPECIES FROM AQUEOUS SOLUTION.
Inventors
- 👤 A Rembaum
Bibliographic Details
Claims Analysis
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