Ladderization of polystyrene derivatives by palladium-catalyzed polymer direct arylation. Issue 21 (2nd May 2019)

• Record Type: Journal Article
• Authors: Takagi, Koji; Tanaka, Hidetoshi; Mikami, Koichiro
• Is Part Of: Polymer chemistry. Volume 10:Issue 21(2019)
• Page Start: 2647
• Page End: 2652
• Publication Date: 2019-05-02
• Subjects: Polymers -- Periodicals; Macromolecules -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1039/c9py00359b
• Languages: English
• ISSNs: 1759-9954

Abstract

Abstract : Pseudo-ladderized polystyrenes could be obtained in high yield by the palladium-catalyzed polymer direct arylation using poly(2-bromostyrene) as a prepolymer. Abstract : 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.