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Copolymers of N ‐vinyl‐2‐pyrrolidone and 2‐phenyl‐1, 1‐dicyanoethene were studied. Infrared, proton, and carbon‐13 spectra of the copolymers are discussed by comparison with poly( N ‐vinyl‐2‐pyrrolidone), model compounds, and various copolymers. Thermal behavior of the copolymers was investigated by using DSC, TMA, and TGA methods. Thermal as well as thermooxidative stability of the copolymers was found to be lower than those of poly( N ‐vinyl‐2‐pyrrolidone).
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Gregory B. Kharas (1988) studied this question.
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