Abstract
The two-step polymerization process of two well-defined polymeric silane coupling agents, triethoxysilyl-terminated polystyrene with molecular weights equal to 2400 [TESi-PS (2400)] and 8000 [TESi-PS (8000)], catalyzed by 0.1 mol/kg CH3SO3H, was traced as a function of reaction time using gel-permeation chromatography (GPC). Two sets of GPC traces, collected during the condensation, were then converted to two-dimensional (2D) correlation spectra by using generalized 2D correlation theory. The 2D correlation spectra elucidated details of the aggregate–aggregate correlations [in particular, the difference between the correlations of TESi-PS (2400) and TESi-PS (8000)], thus demonstrating the effect of aggregation on the polymerization.
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