Keywords
charge-transfer complex
degradation
iodine
poly(ε-caprolactone)
polyiodide ions.
Abstract
Upon the solid-state degradation of poly(ε-caprolactone) under the action of iodine vapor, the number-average molecular weight of the polymer decreased by almost an order of magnitude 48 h after the incorporation of iodine (~6 wt%) from a gaseous phase. A polymer degradation mechanism through the cleavage of C--O bonds in the polymer backbones with the formation of a charge-transfer complex and the participation of water or polyiodide ions was proposed.
Funders
Russian Science Foundation
24-23-00082
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