Regression analysis, stability constants

Reflux experiments, polymer growth 237-39 Regression analysis, stability constants... 

Figure 1. Dependence of butyl acrylate percent conversion to polymer on the stability constants for potassium ion complexation in methanol of the various crown ethers. Line calculated by regression analysis o, experimental values 1, 18-crown-6 2, dicyclohexyl-18-crown-6 3, 21-crown-7 4, dibenzo-18-crown-6 5, 15-crown-5 6, cyclohexyl-1 5-crown-5 8, 1,10-diaza-18-crown-6. Reproduced from Ref. 2. Copyright 1981, American Chemical Society.

Linear regression analysis of the stability constants and the complex fractions yielded the following results ... 

The stationary case is given by the description shown below in Fig. 2.2. It is a sketch of the way by which complex formation constants are traced back to and correlated with E (L) using the most simple approach of linear regression analysis (applications in Figs. 2.2 and 2.15). There are two terms in Eq. 2.4 one of which (c) describes an intrinsic binding stability... 

The stability constant for the formation of ZrF from ZrF" (g = 2 in Eq.(V.23)), was determined using a weighted (least squares) analysis technique (see Figure V-16). The selected log Q AT° determined from the regression is ... 

A recalculation of the data, using the method of non-linear least squares analysis, in the present review indicated that the data supported the formation of a sixth fluoride species, ZrF , and that regression analysis could be used to derive an uncertainty for the third sulphate species, Zr(S04)j . The stability constant values derived in the present review were for equilibria of the form... 

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