Advantages factors influencing properties

Obviously, the way in which CEPs such as PPy s are assembled has a dramatic effect on their chemical, electrical, and mechanical properties. This information can be used to advantage by those of us involved in material design from the molecular level. Factors influencing the electrical and chemical properties of CEPs continue to be studied, adding more information to the already massive databank indicating that these are not simple systems. 

The main chemico-analytical properties of the designed ionoselective electrodes have been determined. The work pH range of the electrodes is 1 to 5. The steepness of the electrode function is close to the idealized one calculated for two-charged ions (26-29 mV/pC). The electrode function have been established in the concentration range from 0.1 to 0.00001 mole/1. The principal advantage of such electrodes is the fact that thiocyanate ions are simultaneously both complexing ligands and the ionic power. The sensitivity (the discovery limits), selectivity (coefficient of selectivity) and the influence of the main temporal factors (drift of a potential, time of the response, lifetime of the membranes) were determined for these electrodes. 

Thus, the rate and selectivity of catalyzed reactions over molecular sieve catalysts are influenced by factors that are affiliated with the specific interface chemistry (chemical induced selectivity) and the constraints induced by the steric limitations (shape selectivity). This advantage, however, also induces drawbacks that can only be partly overcome by adjustment of the mesoscopic properties of the molecular sieve. 

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