The influence of polymer structure on the conversion of synthetic resins to carbon-coke

✍ Scribed by H.A Mackay

• Publisher: Elsevier Science
• Year: 1970
• Tongue: English
• Weight: 864 KB
• Volume: 8
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(70)90014-x

✦ Synopsis

An investigation

of the relation of polymer structure to carbon-coke of various synthetic resins and polymer intermediates has been conducted. The quantity of carboncoke formed with a synthetic resin is converted to carbon at 840°C is believed influenced by the ease and degree of aromatization and cyclization of the resin during the early stages of carbonization rather than if the resin is a thermoset or thermoplastic. Polymers, typically poly-p-xylene or polystyrene, do not cyclize during carbonization and consequently are almost entirely volatilized, probably as the result of chain scission and fragmentation of the polymer fragments at high temperatures.

Phenol aldehyde, epoxylated novolacs, or diphenyl oxide aldehyde crosslinked polymers do not undergo chain scission during carbonization, but are cyclized, condensed, and readily converted to carboncoke in 50-65 per cent weight yields.