Ladderization of polystyrene derivatives by palladium-catalyzed polymer direct arylation

Ladderization of polystyrene derivatives by palladium-catalyzed polymer direct arylation

Ladderization of polystyrene derivatives successfully proceeded by palladium-catalyzed polymer direct arylation in the presence of a phosphine ligand and pivalic acid using poly(2-bromostyrene) as a prepolymer, in which the polymer tacticity had little influence on the reaction efficiency. The react...

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Veröffentlicht in:Polymer chemistry 2019-06, Vol.1 (21), p.2647-2652
Hauptverfasser: Takagi, Koji, Tanaka, Hidetoshi, Mikami, Koichiro
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creator Takagi, Koji
Tanaka, Hidetoshi
Mikami, Koichiro
description Ladderization of polystyrene derivatives successfully proceeded by palladium-catalyzed polymer direct arylation in the presence of a phosphine ligand and pivalic acid using poly(2-bromostyrene) as a prepolymer, in which the polymer tacticity had little influence on the reaction efficiency. The reaction mechanism was supported by theoretical calculation in detail. The optical and thermal properties of pseudo-ladderized polystyrene suggested enhanced chain rigidity. Pseudo-ladderized polystyrenes could be obtained in high yield by the palladium-catalyzed polymer direct arylation using poly(2-bromostyrene) as a prepolymer.
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title Ladderization of polystyrene derivatives by palladium-catalyzed polymer direct arylation
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