The pyrolysis of p‐xylene
Author:
- 1 January 1955
- journal article
- research article
- Published by Wiley in Journal of Polymer Science
- Vol. 15 (79) , 203-219
Abstract
A quantitative study of the pyrolysis of p‐xylene at temperatures from 795° to 920° at low pressures has been made using a flow system at low contact times. A mechanism is postulated to account for the principal products. The primary rate controlling reactions are the dissociation of either a CH bond in the methyl side chain or a CC bond from the ring to the methyl group, the activation energies of which are 79 and 82 kcal., respectively. Evidence is presented for the existence of the intermediate p‐xylylene molecule, and for its formation by disproportionation from the initially formed p‐methylbenzyl radicals. The copolymerization of p‐xylylene with maleic anhydride or chloroprene is described.Keywords
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