Abstract
Infrared and mass spectral analyses are reported of the surface species generated when the adsorption complexes zeolite+acrylonitrile are heated. The evidence presented indicates that H2O competes favourably for zeolitic adsorption sites with acrylonitrile. Infrared spectra suggest that a C2 π-bonding interaction may be important in the adsorption of acrylonitrile. Heating adsorbed acrylonitrile appears to generate polyacrylonitrile products which may include a cyclic dimer. Extended heating results in the possible formation of conjugated nitrile species, polyenes and even more extensively carbonized products.
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