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Indenylnickel(II) Halides for the Polymerization of Styrene in the Presence of NaBPh4/PPh3

Identifieur interne : 005E63 ( Main/Exploration ); précédent : 005E62; suivant : 005E64

Indenylnickel(II) Halides for the Polymerization of Styrene in the Presence of NaBPh4/PPh3

Auteurs : Hong Ei Sun [République populaire de Chine] ; Wan Ei Li [République populaire de Chine] ; Dong Ei Hu [République populaire de Chine] ; Qing Shao [République populaire de Chine] ; Qi Shen [République populaire de Chine]

Source :

Chinese Journal of Chemistry [ 1001-604X ] ; 2006-03.

RBID : ISTEX:09DD414F74D4A7E5BB3EEA806184BE01D4C1A7A0

English descriptors

KwdEn :
- catalyst, indenyl, nickel complex, polymerization, styrene.

Abstract

The catalytic activity of a series of indenylnickel(II) halides: (1‐R‐Ind)Ni(PPh3)X (R=ethyl, cyclopentyl and benzyl, while X=Cl, Br and I), towards styrene polymerization was studied in the presence of NaBPh4 and PPh3. The catalytic property of these halides was related to the substituent group on the indenyl ligand and the halogen atom bonded to the metal atom. Among them, the (1‐Et‐Ind)Ni(PPh3)Cl/NaBPh4/PPh3 system showed the highest activity for the polymerization of styrene, and the polystyrene obtained was a syndio‐rich (rr triad) atactic polymer with Mn values in the range of 103–104. The mechanism of the styrene polymerization initiated by the (1‐Et‐Ind)Ni(PPh3)Cl/NaBPh4/PPh3 system was studied.

Url:

https://api.istex.fr/document/09DD414F74D4A7E5BB3EEA806184BE01D4C1A7A0/fulltext/pdf

DOI: 10.1002/cjoc.200690078

Affiliations:

République populaire de Chine

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Le document en format XML

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<front><div type="abstract" xml:lang="en">The catalytic activity of a series of indenylnickel(II) halides: (1‐R‐Ind)Ni(PPh3)X (R=ethyl, cyclopentyl and benzyl, while X=Cl, Br and I), towards styrene polymerization was studied in the presence of NaBPh4 and PPh3. The catalytic property of these halides was related to the substituent group on the indenyl ligand and the halogen atom bonded to the metal atom. Among them, the (1‐Et‐Ind)Ni(PPh3)Cl/NaBPh4/PPh3 system showed the highest activity for the polymerization of styrene, and the polystyrene obtained was a syndio‐rich (rr triad) atactic polymer with Mn values in the range of 103–104. The mechanism of the styrene polymerization initiated by the (1‐Et‐Ind)Ni(PPh3)Cl/NaBPh4/PPh3 system was studied.</div>
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Indenylnickel(II) Halides for the Polymerization of Styrene in the Presence of NaBPh4/PPh3

Indenylnickel(II) Halides for the Polymerization of Styrene in the Presence of NaBPh4/PPh3

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri