It is implied that the branched structure might be obtained.
To further confirm this point, the GPC traces of the obtained
polymers at different reaction times and the conversions
dependence of number-average molecular weight and Mw/
Mn are shown in Figures 1 and 2, respectively. It was significant
that with the increase of monomer conversion, the
molecular weight shifted to higher molecular weights direction
and the molecular weigh distribution became broader
with multi-peaks, indicating that polystyrenes with branched
structure were obtained.