Polyfunctional, definition

Here, it is appropriate to add certain proviso. The above recommendations by no means should be considered a set of rigid instructions. They are generally applicable to molecules of medium complexity and may be useless if applied to a target structure that contains an intricate set of interfering, polyfunctional groups at multiple chiral centers. A rather different approach should be used in such cases and its consideration definitely lies outside the limits and aims of our book. 

The GB/SA model also correlates quite well with experiment for the neutral solutes. As expected, the regression slope and intercept are also nearly ideal. Conversely, based on the four ions for which results have been reported, there seems to be a tendency to overestimate ionic solvation free energies, but definite conclusions cannot be drawn from so small a sampling. Whereas the available data span a larger range of functionality than do those from the SASA model, there is still a paucity of results for complex and polyfunctional solutes. It would be very interesting to see how robust the model is in such instances. 

The thermodynamics of the n-paraffin n-olefin step (see Fig. 1) indicates a maximum attainable first step conversion of between 0.04 and 0.6%, depending on whether dehydrogenation occurs to predominantly one double-bond isomer like 1-hexene, as one extreme case, or possibly all double bond isomers at full equilibrium concentration, as the other. Thus the observed action of polyfunctional coaction is not trivial, by, the definition of Section II,C, and represents a demonstration which in view of its simplicity, would even lend itself—like others to be discussed below—to classroom demonstration, since product spectra can now be displayed essentially immediately with simple vapor chromatographic techniques. 

According to the original classification of Carothers, condensation polymers are formed from hi- or polyfunctional monomers by reactions which involve elimination of some smaller molecule. A condensation polymer, according to t his definition, is one in which the repeating unit lacks certain atoms which were present in the monomers(s) from which the polymer was formed. 

Definition Reaction prods, of liquid polysulfide polymers and polyfunctional epoxide resins, cured with tri (dimethylaminomethyl) phenol Uses Adhesive as food-contact surf, of articles for pkg., transporting, or holding dry food Reguiatory FDA 21CFR 177.1650 Trade Name Synonyms Tra-Bond 2133 t[Tra-Con] Tra-Bond F141 J[Tra-Con]... 

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