Letter | Published:

Pyrolysis of Polyacrylonitrile


THE pyrolysis of polyacrylonitrile (PAN) up to and above 1,000° C is of scientific and technological importance in view of the current interest in carbon fibres. The pyrolysis should be clearly distinguished from the coloration of PAN that occurs on heating in vacua at 150°–220° C (ref. 1) and in processes leading to the uptake of oxygen from air at about 200°–250° C (unpublished work of W. W. and W. Johnson).

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    Strauss, S., and Madorsky, S. L., J. Res. Nat. Bur. Stand., 61, 77 (1958).

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    Shindo, A., Govn. and Res. Institn. Osaka, Rep. 317 (December 1961).

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    Everett, D. H., and Redman, E., Fuel, 42, 219 (1963).

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    Watt, W., and Johnson, W. T., Polymer Sci. (in the press).

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    Everett, D. H., and Redman, E., Proc. Chem. Soc., 91 (March, 1963).

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