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Poly(vinyl chloride) Dechlorination Catalyzed by Zirconium.
Normand, Adrien T; Wu, Yue; Régnier, Tiffanie; Fleurat-Lessard, Paul; Rousselin, Yoann; Théron, Benjamin; Le Gendre, Pierre; Carta, Mariolino.
Affiliation
  • Normand AT; Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), 9 avenue Alain Savary, 21078, Dijon Cedex, France.
  • Wu Y; Department of Chemistry, Faculty of Science and Engineering, Swansea University, Singleton Park, SA2 8 PP, Swansea, Wales.
  • Régnier T; Plateforme d'Analyse de l'Institut de Chimie Moléculaire de l'Université de Bourgogne (PACSMUB), 9 avenue Alain Savary, 21078, Dijon Cedex, France.
  • Fleurat-Lessard P; Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), 9 avenue Alain Savary, 21078, Dijon Cedex, France.
  • Rousselin Y; Plateforme d'Analyse de l'Institut de Chimie Moléculaire de l'Université de Bourgogne (PACSMUB), 9 avenue Alain Savary, 21078, Dijon Cedex, France.
  • Théron B; Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), 9 avenue Alain Savary, 21078, Dijon Cedex, France.
  • Le Gendre P; Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), 9 avenue Alain Savary, 21078, Dijon Cedex, France.
  • Carta M; Department of Chemistry, Faculty of Science and Engineering, Swansea University, Singleton Park, SA2 8 PP, Swansea, Wales.
Chemistry ; 30(21): e202304005, 2024 Apr 11.
Article in En | MEDLINE | ID: mdl-38314958
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).
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Chemistry Journal subject: QUIMICA Year: 2024 Document type: Article Affiliation country:
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Chemistry Journal subject: QUIMICA Year: 2024 Document type: Article Affiliation country: