Complex forming polymers from dimethyl dipyridyl compounds

Abstract

Abstract COMPLEX FORMING POLYMERS, HAVING REPEAT UNITS (PYRID-2-YL-L-)PYRIDINE JOINED TO EACH OTHER BY POLYVALENT LINKING GROUPS, WHERE L IS A DIRECT BOND OR AN O, S, CO, CHR1 OR NR1 LINK (R1 BEING HYDROGEN OR ALKYL) AND THE PYRIDYL RINGS MAY BE SUBSTITUTED BY ALKYL OR LINKED TO EACH OTHER AT POSITIONS ORTHO TO THE L LINK BY A -CR1=CR1 GROUP, ARE USEFUL FOR COMPLEXING NON-ALKALINE METAL ATOMS. THEY WILL FORM COMPLEXES IN AN ACIDIC MEDIUM AND WHEN THE METAL IS ITSELF ALREADY PART OF A COMPLEX ION. THE COMPLEXED POLYMERS ARE USEFUL AS CATALYSTS AND, AS ARE THE COMPLEX FORMING POLYMERS, AS VARNISHES FOR COATING METAL. THE POLYMERS ARE PREPARED BY A VARIETY OF VINYL-TYPE POLYMERIZATIONS AND POLYCONDENSATIONS. PARTICULARLY USEFUL INTERMEDIATES 2-(4-(OCH-AR-CH=CH-)PYRID-2-YL),4-(OCH-AR-CH=CH-)PYRIDINE WHERE AR IS ARYL ARE PREPARED FROM THE ARYL DIALDEHYDE AND 4,4''-DIMETHYL-2,2''-DIPYRIDYL.

Inventors

• 👤 R Chapurlat
• 👤 E Kuntz

Bibliographic Details