Cluster-containing polymers as precursors of metal nanocomposites

Svetlana I. Pomogailo, Gulzhian I. Dzhardimalieva, Anatolii D.
Pomogailo

Institute of Problems of Chemical Physics Russian Academy of Sciences,
Chernogolovka Moscow Region, 142432, Russia, E-mail: [email protected]

Cluster-containing polymers are obtained in two ways: by
immobilization of cluster compounds on macroligands, or by
copolymerization reactions of cluster-containing monomers
(Rh[6](CO)[15](4-CH[2]=CH-C[6]H[4]N),
Rh[6](CO)[14](m,h2-PPh[2]CH[2]CH=CH[2]) and
(m-H)Os[3](m-OCNM[2])(CO)[9]PPH[2]CH[2]CH=CH[2]) with traditional
vinyl monomers. It was found that Rh[6]- and Os[3]-containing monomers
did not change either the ligand surroundings or the structure of
cluster monomer framework during polymerization reaction. The
molecular weight parameters of the obtained copolymers were studied.
The catalytic properties of polymer-immobilized Rh[6]- and Os[3]
clusters obtained were studied in varied reactions. Rh[6]-containing
polymers showed a high catalytic activity in hydrogenation of
cyclohexene, they can be used repeatedly without deactivation.
Carbonylation of methanol in protonic medium proceeded effectively in
the presence of Os[3] copolymer with styrene and resulted in formation
of formic acid and trifluoroacetate. These polymer clusters were also
efficient in hydrogenation of styrene under supercritical CO[2]. The
catalytic hydroxylation of olefins by organic hydroperoxides in the
presence of osmium-containing polymers were studied. It was shown
that reaction proceeded with preferred formation of unsaturated
alcohols. Oxidative dimerisation of olefins into nonconjugated dienes
were also observed. The influence of nature of ligands and polymer
matrix as well as a specific content of metal on catalytic activity
and composition of products formed are discussed.

• Legal notice:
  

  Copyright (c) Pielaszek Research, all rights reserved.
  The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
  In every case, proper references including Author(s) name(s) and URL of this webpage: https://science24.com/paper/376 must be provided.

1. PROCESSING AND PROPERTIES OF COMPOSITE MAGNETIC POWDERS CONTAINING Co NANOPARTICLES IN POLYMERIC MATRIX
2. Catalytic properties of metal cluster-containing polymers
3. Metallopolymer nanocomposites: preparation and properties
4. Frontal Polymerization of Metal-Containing Monomers as a Way for Synthesis of Polymer Nanocomposites
5. Kinetics and Mechanism of the Formation of Self-Organized Metal-Polymer Nanocomposites