Apparent Rate Order in Friedel-Crafts Acid

3 Apparent Rate Order in Friedel-Crafts Acid 

Contrary to these results, Faust et al. (37) found close to second order behavior in [TiCl4] in similar IB polymerizations initiated by aromatic compounds, e.g., dicumyl chloride. The authors explained their findings by assuming the existence of TiCl4 dimers. The resolution of this intriguing discrepancy between these observations must wait for further investigation. 

4 The Effect of Experimental Conditions on Molecular Weights and Molecular Weight Dispersides GPC Studies 

The analysis of the position and shape of GPC traces provides valuable insight into the mechanistic details of polymerizations. To eluddate the nature of 

The set of data in Fig. 23B indicate the effect of [ED] (expressed by the [TMPC1]/[TEA] ratio) on Mn and MWD under the same conditions. In the absence of ED (conventional polymerization) or at low [ED] ([TMPC1]/ [TEA] = 1 0.042), polymerizations are rapid and conversions are complete in much less than 10 min, and the GPC traces show broad multimodal distributions suggesting a multiplidty of propagating spedes. With increasing [TEA] the rate of polymerization is reduced due to the decrease in the concentration of cationic species and a reduction in kp. At [TMPC1]/[TEA] = 1 0.5 most of the 

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