Aromatic ether–ketone–‘X’ polymers. Part 3.—Effects of structure on the melt stability of some ether–ketone–imide copolymers
Abstract
A modified Friedel–Crafts synthesis has been used to make a series of aromatic ether–ketone–imide copolymers. Melt viscosity measurements of the polymers were made using capillary rheometry, and the effects of structural variations on the stability of the melt viscosity of the copolymers were evaluated.