Metal palladium supported on amphiphilic microporous synthetic organic supports. Part II. Catalytic investigations

摘要: Abstract Two sets of resin-supported Pd(0) catalysts were compared in the hydrogenation cyclohexene methanol, under ambient conditions. lightly crosslinked poly-{styrene/2-methacryloxyethylsulfonic acid/methylenebisacrylamide} with different degrees crosslinking (1 and 3 mol%), have been used as catalyst supports. palladium loadings (0.22 2.2 wt%) prepared from each support. When size particles was relatively small, 2.2% 0.22% Pd almost equally active respect to amount reaction mixture. In contrast, when larger used, metal produced conversion profiles typical diffusion-controlled regimes (productivity decreased increasing crosslinking). These characterised by combined ESR static gradient spin echo NMR spectrometries, which provided information about molecular motion inside polymer networks.