A Study on the Structures of Polyvinylpyridine-Poly (Styrene-Maleic Acid)-Palladium Catalysts Supported on Silica

Chem. J. Chinese Universities ›› 1989, Vol. 10 ›› Issue (9): 939.

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A Study on the Structures of Polyvinylpyridine-Poly (Styrene-Maleic Acid)-Palladium Catalysts Supported on Silica

Yang Shiyong, Sun Juntan, Li Hong, He Binglin

Institute of Polymer Chemistry, Nankai University, Tianjin

Received:1988-01-30 Online:1989-09-24 Published:1989-09-24

Abstract

Abstract: The Poly(4-vinylpyridine)(P4VP) or Poly(2-vinylpyridine) (P2VP)-Poly(styrene-maleic acid) (PSM)-palladium catalysts supported on silica were prepared.The structures of these catalysts were investigated with X-ray photoelectron spectroscopy, ultraviolet-visible spectroscopy and transmission and scanning electron microscopy etc.It is found that the catalysts were composed of both Pd(0) and Pd(Ⅱ) complexes, and the ratio of Pd(Ⅱ)/Pd(0) was affected by the presence of PSM.The palladium particles in the catalysts are well distributed on the carrier surface.

Key words: Palladium catalyst, Electron binding energy, Polyvinylpyridine

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Yang Shiyong, Sun Juntan, Li Hong, He Binglin. A Study on the Structures of Polyvinylpyridine-Poly (Styrene-Maleic Acid)-Palladium Catalysts Supported on Silica[J]. Chem. J. Chinese Universities, 1989, 10(9): 939.

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A Study on the Structures of Polyvinylpyridine-Poly (Styrene-Maleic Acid)-Palladium Catalysts Supported on Silica

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