Study of the Isothermal Bulk Polymerization of Methacrylic Acid and Some Methacrylic Acid Esters by Differential Scanning Calorimetry

Abstract
The course of the isothermal bulk polymerization of methacrylic acid and some methacrylic acid esters differing in the length of the ester group was studied by differential scanning calorimetry at different temperatures. The enthalpies of polymerization, the residual monomer content, the overall reaction rate constants, and the overall activation energies were calculated. The molecular weight averages of the synthesized polymers before and after the gel effect were measured by gel permeation chromatography.