Vinylpyridines imides

Aminoethylations with ethylenimine250 and Michael reactions have also demonstrated a preference for the acidic imide function. Thus the N3—H group adds to acetylene to give JV-3-vinylhydantoins251 and to activated ethylenes, such as acrylonitrile or 4-vinylpyridine, to give N-3-substituted hydantoins.25 252 253 Under some conditions 1,3-disubstituted hydantoins are obtained.251... 

It is claimed that styrene/butadiene diblock polymers bring about an improvement in the hardness, strength, and processability of polybutadiene elastomers (27), as well as an improvement in the ozone resistance of neoprene rubber (28). Styrene diblock polymers have also been made with isoprene, a-methyIstyrene, methyl methacrylate, vinylpyridine, and a-olefins. Block copolymers of ethylene, propylene, and other a-olefins with each other have been made as well. Heteroatom block copolymers based on styrene or other hydrocarbons and alkylene oxides, phenylene oxides, lactones, amides, imides, sulfides, or slloxanes have been prepared. 

Entrapment in polyacrylamide gel over a platinum grid matrix Glutaraldehyde-mediated reaction with a nylon-polyethyleneimine copolymer Reaction with macroporous aminated silo chrome coated with an acrolein-vinylpyridine copolymer Adsorption onto tannin coupled to amino hex y 1-cellulo se Entrapment in cellulose fibres Carbodi-imide-mediated reaction with chitosan... 

Other nitrogen containing polymers which have been subjected to thermal decomposition studies include aromatic polyester imides containing 2,7-bis(4-aminobenzoyloxy) naphthalene groups [16], poly-4-vinylpyridine [17], poljmrethanes [18], polybutyl cyanoacrylate [19], and polypropyl acrylate [20]. 

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