The polymerization reactions of some N‐alkyl maleamic acids and N‐alkyl maleimides have been described and a number of copolymers have been characterized. The N‐alkyl maleamic acids do not homopolymerize under the conditions employed but do copolymerize with styrene, acrylonitrile, and methacrylates. N‐Alkyl maleimides form homopolymers readily and copolymerize with a variety of vinyl monomers. Reactivity ratios of N‐butyl maleimide with styrene and methyl methacrylate have been determined, and Q and e values have been calculated.
The reactivity ratios in the copolymerization of N‐vinyloxazolidone with styrene, methyl methacrylate, decyl methacrylate, vinyl acetate, and vinyl chloride have been determined and the Alfrey‐Price Q and e values calculated. Reactivity ratios in the copolymerization of N‐vinylpyrrolidone with styrene, methyl methacrylate, and vinyl acetate have also been determined and the Q and e values determined. N‐Vinyloxazolidone was found to be similar but less reactive than N‐vinylpyrrolidone as a comonomer; however, the properties of the resultant copolymers differed appreciably.
A series of pyridine analogs of chalcone and cinnamic acid have been prepared and their preparation has been described in detail along with the infrared and ultraviolet absorption spectra. Some polymerizations and copolymerizations of these new monomers have been described and the properties of a variety of new copolymers have been recorded.
Urbana, Illinois
The reactivity ratios in the copolymerizations of N‐tert‐octyl acrylamide, N‐n‐octyl acrylamide, and N,N‐di‐n‐butyl acrylamide with styrene and methyl methacrylate have been determined, and the Alfrey‐Price Q and e values calculated. The distributed monomer N,N‐di‐n‐butyl acrylamide was found to be more reactive than either N‐n‐octyl or N‐tert‐octyl acrylamide, which were of about the same reactivity.
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