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- Title
Poly(vinyl chloride) Dechlorination Catalyzed by Zirconium.
- Authors
Normand, Adrien T.; Wu, Yue; Régnier, Tiffanie; Fleurat‐Lessard, Paul; Rousselin, Yoann; Théron, Benjamin; Le Gendre, Pierre; Carta, Mariolino
- Abstract
Poly(vinyl chloride) undergoes dechlorination in the presence of triethylsilane (Et3SiH) and a catalytic amount of [Cp2Zr(NPh2)][CH3B(C6F5)3] (1 b) at 40–80 °C, with up to 91 % efficiency. Stoichiometric reactivity studies conducted on cyclohexyl chloride as a model suggest that 1 b 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).
- Subjects
VINYL chloride; ZIRCONIUM; POLYVINYL acetate; ELECTRIC cables; PIPE fittings; PHTHALATE esters
- Publication
Chemistry - A European Journal, 2024, Vol 30, Issue 21, p1
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.202304005