Controlling selectivity for dechlorination of poly(vinyl chloride) with (xantphos)RhCl
Source abstract
Abstract
-dimethylacetamide (DMA) as a solvent both diminished selectivity for hydrodechlorination, promoting competitive dehydrochlorination reactions. Reaction of PVC with 2 equiv. of sodium formate in THF in the presence of (xantphos)RhCl affords excellent selectivity for hydrodechlorination along with complete PVC dechlorination, yielding polyethylene-like polymers. Higher catalyst loadings were necessary to activate PVC towards reduction in this case. In contrast, reaction of PVC with 1 equiv. of NaH in DMA, in the presence of (xantphos)RhCl, exhibited good selectivity for dehydrochlorination, as well as much higher reaction rates. These results combined shed light on the interplay between critical reaction parameters that control PVC's mode of reactivity.
Source: openalex_inverted_index · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Polymer Science and PVC · Environmental remediation with nanomaterials · biodegradable polymer synthesis and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA
Department of Chemical Engineering and Materials Science, Mork Family, University of Southern California, Los Angeles, California 90089, USA
Wrigley Institute for Environmental Studies, University of Southern California, Los Angeles, California 90089, USA
Funding
U.S. Department of Energy · National Science Foundation · University of Southern California · Women in Science and Engineering, University of Southern California
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