N-substituted itaconimide

Values of termination constants for sterically hindered monomers may be several orders of magnitude lower than those for S and (methacrylates). Such monomers include various ra-substituted methacrylates, itaconates, fumarates, and N-substituted itaconimides and maleimides. Values of kt for these monomers have been reported to lie in the range IQ-1Q5 NT s 1 depending on the particular... 

N-substituted itaconimides have been prepared from the itaconamic acids and polymerized. Homopoljmierization occurs less readily than in the ester series, while copolymerization with several monomers proceeds readily [44). 

Academic researchers have reported that barbituric acid and thiobarbituric acid can outperform many of the stabilisers currently in commercial use, at least in laboratory tests. Promising results have also been reported for N-substituted itaconimide derivatives, said to be more effective at stabilising phthalate-plasticised PVC than many of the stabilisers traditionally used in the industry. Commercialisation of academic developments would require extensive data about the effects of the stabilisers on processing and overall technical performance, as well as toxicological studies. 

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See also in sourсe #XX -- [ ]

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