Percent conversion, gegenion

Time Effect of Gegenion on Percent Conversion and Intrinsic Viscosity. The effect of gegenion on percent conversion to polymer and on intrinsic viscosity of the polymers is shown in Table V. Duplicates and runs with fresh catalyst solution all followed the same pattern. In the experiment using the BF4 gegenion at 10 times the usual concentration, the final conversion is increased considerably, although it still falls 2% below the equilibrium conversion. 

Table V. Time Effect of Gegenion on Percent Conversion and Intrinsic Viscosity of PTHF...

Time Effect of Gegenion on Percent Conversion. A comparison of the effect of gegenion on the percent conversion is shown in Figure 2. The lower conversion obtained with the BF4 gegenion is already obvious at 0.5 hour. By 1.5 hours the conversion is only 70% of that observed with the other gegenions. The effect becomes more noticeable as time con-... 

The PFc and SbF6" gegenions are discussed together because the percent conversion for the SbF6" and the PF6 followed approximately the same course. Equilibrium was reached after about 8 hours. It has been shown that there is very little termination (10) with the PF(f... 

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