Poly(2-vinyl pyridine) as a template for the radical polymerization of methyl acrylate

Abstract

The template polymerization of methyl acrylate (MA) along with poly(2-vinyl pyridine) (P2VP) template of (<img src='http://www.niscair.res.in/jinfo/mbar.gif' border=0>_v = 72.000) at 60°C for 120 min in dimethylformamide (DMF) has been studied dilatometrically to investigate the effect of'[template]. [monomer) and [initiator] (AIBN) upon kinetics and mechanism of the reaction. Viscometric measurements show that complexation between PMA and P2VP is very fast at 60ᵒC giving 1:1 complexes and is virtually completed after 10 min. The <img src='http://www.niscair.res.in/jinfo/mbar.gif' border=0>_v of daughter polymer is 70.210 which is very close to that of template. The overall energy of activation (<img src='http://www.niscair.res.in/jinfo/delta.gif' border=0>E) of template and blank polymerization is 77.0 kJ /mol and 96.0 kJ/mol, respectively. The resulting plots of relative polymerization rate (<em>V</em>_R) versus [P2VP] and [MA] show that the polymerization in the present system is a combination of three different reaction mechanisms, the blank reaction and two template mechanisms (I and II).