Copolymers of poly-{acrylamide-co-[3- (acryloylamino)propyltrimethylammoniumchloride]} as carriers for platinum species and their use as catalysts in heterogeneous gas phase reactions

✍ Scribed by E. Baumgarten; A. Fiebes; A. Stumpe

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 634 KB
• Volume: 34
• Category: Article
• ISSN: 0887-624X
• DOI: 10.1002/(sici)1099-0518(19960730)34:10<1889::aid-pola6>3.0.co;2-k

✦ Synopsis

In the following, the binding of PtCl2-to quarternary ammonium groups of the copolymers followed by reduction of platinum to a zerovalent state is described. At temperatures between 60 and 180°C the supported catalysts were effective in isomerization and hydrogenation of hexene( 1). The dependence of catalytic activity and selectivity on copolymer composition and the average molecular weight (M,) of the polymer have been analyzed. Copolymers of the composition 90% acrylamide/lO% quarternary compound and average molecular weights of about one million were found to be the most active ones. Thermal and chemical stability of the catalysts were studied by differential thermal analyses, thermal gravimetric analyses, and elemental analyses. Morphology and structure were analyzed by raster electron microscopy, x-ray photon spectroscopy, far infrared spectroscopy, and Fourier transform infrared spectroscopy. Several particle properties of the new catalysts, such as pore volume and surface area, were also investigated. 0 1996 John Wiley & Sons, Inc.