HETEROGENEOUS CATALYTIC HYDROGENATION OF POLY(VINYLETHYLENE).

J. H. Rosedale, F. S. Bates

Research output: Contribution to journalArticlepeer-review

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Abstract

The hydrogenation of poly(vinylethylene) in cyclohexane (1% w/v) at 70 degree C with use of a calcium carbonate supported palladium catalyst has been investigated. Evaluation of partially hydrogenated polymer by size-exclusion chromatography and **1H NMR spectroscopy reveals that this reaction initially proceeds by the concerted hydrogenation of approximately 85% of the unsaturated repeat units in individual polymer molecules during a single adsorption step from solution. This finding is qualitatively explained on the basis of the unique adsorption characteristics of polymers, in conjunction with the estimated heats of adsorption for unsaturated and saturated hydrocarbons on group VIII metal surfaces.

Original languageEnglish (US)
Pages (from-to)3542-3545
Number of pages4
JournalJournal of the American Chemical Society
Volume110
Issue number11
DOIs
StatePublished - Jan 1 1988

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