Abstract: | The syntheses of poly[1-(1-oxy-2-quinolyl)ethylene] [poly(2-vinylquinoline 1-oxide)] ( 1a ) and of a number of methyl derivatives ( 1b—f ) are described. Some of the polymers are insoluble in water but soluble in aqueous acetone at several pH values. Those polymers that have a methyl substituent in position 4 are soluble in aqueous acetone below pH < 4 and the viscosity rises steeply with decreasing pH. Polymers with no methyl substituent in position 4 are soluble in aqueous acetone at pH > 6 and the viscosity varies but little with the pH. |