142 Advances in Polymer Science Editorial Board: A. Abe. A.-C ...

66 B. Charleux, R. Faust
Scheme 17
final product upon quenching with methanol was an irregular branched polymer
with numerous chloride functions (it is unlikely that methoxy functions, assumed
by the authors are present in measurable amounts).
The effect of reaction parameters such as [monomer]/[SnCl 4 ] ratio, nature of
Lewis acid, and quenching agent was also studied [110]. Interestingly, soluble
product was only obtained with m-substituted styrene. With para-substituted
styrene the polymer obtained after precipitation in methanol and drying was insoluble.
When 3-(1-chloroethyl)-ethenylbenzene was polymerized under identical
conditions with different Lewis acids, the MW and polydispersity of the
products increased in the order BCl 3