Catalysis polymer

Each point in the phase diagram in Fig. 8.8 corresponds to a certain value of a and b, i.e., it represents the possible chemical composition of a molecular population. Variable a forms the horizontal axis, (1 +a) being the number of monomer types. The b axis represents the quality factor of the polymer catalysis. The transition region contains those populations which can have both ordered and disordered... 

Kaminsky W, Arndt M (1997) Metallocenes for polymer catalysis. Adv Polym Sci 127 143-187... 

From the above it will be clear that the polymer chain carrying catalytic centers has to play an active role during each catalytic cycle. Therefore, we prefer to speak of macromolecular catalysis rather than of polymer catalysis, the more so, as we omitted crosslinked carriers from our studies in order to prevent that diffusion of reactants and products would become rate-determining. Consequently, the practical combination of simple separability and really macromolecular catalysis should be realized by... 

Some conclusions can be drawn from comparison of the TOF values obtained using biphasic catalysis with literature data for the same reactions catalyzed by a polymer-supported Pd(0) catalyst (Table 2) [161]. First, although the TOFs for the dendrimer-encapsulated catalysts are consistently lower than for the polymer-supported catalysts, the values are in some cases comparable. Second, the selectivity pattern exhibited by the two types of catalysts is somewhat different. Specifically, the range of TOF numbers for biphasic catalysis is far greater than for conventional polymer catalysis, which suggests the possibility of the type of... 

Nobel Metal Synthetic Polymer Catalysis and Studies on the Mechanism of Their Action... 

IETS has enjoyed considerable success in seemingly diverse areas of research including adhesion, biological molecules and polymers, catalysis, corrosion, and lubrication. The reader is referred to several comprehensive review articles [15-17], a compendium of spectra [18], and an excellent book [ 19] on the subject. 

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