Monomers for non-bond crosslinking of vinyl polymers: II. Cyclic octaethylene glycol 5-methacrylamido-isophthalate

The new concept of non-bond crosslinking of vinyl polymers is demonstrated with cyclic octaethylene glycol 5-methacrylamido-isophthalate, which was synthesized and copolymerized with methyl methacrylate to yield insoluble copolymers with a high swelling capacity, threading of polymer chains through the rings being the cause of the crosslinking. Evidence for the threading was obtained from 2D nuclear magnetic resonance.