Poly(vinyl chloride) Dechlorination Catalyzed by Zirconium.
Dechlorination
Earth-abundant metals
PVC
Silanes
Journal
Chemistry (Weinheim an der Bergstrasse, Germany)
ISSN: 1521-3765
Titre abrégé: Chemistry
Pays: Germany
ID NLM: 9513783
Informations de publication
Date de publication:
05 Feb 2024
05 Feb 2024
Historique:
revised:
02
02
2024
received:
01
12
2023
accepted:
05
02
2024
medline:
5
2
2024
pubmed:
5
2
2024
entrez:
5
2
2024
Statut:
aheadofprint
Résumé
Poly(vinyl chloride) undergoes dechlorination in the presence of triethylsilane (Et3SiH) and a catalytic amount of [Cp2Zr(NPh2)][CH3B(C6F5)3] (1b) at 40-80 °C, with up to 91 % efficiency. Stoichiometric reactivity studies conducted on cyclohexyl chloride as a model suggest that 1b dechlorinates PVC by initial chloride abstraction, followed by hydride transfer to the cationic PVC chain from Et3SiH. Consumer items such as pipe fitting, vinyl disc or electric cable insulation undergo either dechlorination or hydrosilylation of the carbonyl-containing copolymer (polyvinyl acetate) or plasticizer (phthalate).
Identifiants
pubmed: 38314958
doi: 10.1002/chem.202304005
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e202304005Informations de copyright
© 2024 Wiley-VCH GmbH.