Infrared spectra of some methacrylic esters and their polymers

Abstract
Spectra of 10 monomers and polymers of methacrylate esters and of methyl chloroacrylate have been studied between 6000‐450 cm−1.A number of known regularities are confirmed. The CH2 and CH3 deformation vibrations in the 1500‐1350 cm−1 region of the polymer unit can be distinguished from absorptions due to the substituents. Some absorptions typical for the substituents have been confirmed between 800‐450 cm−1.Absorptions due to deformation and stretching vibrations of the =CH2 group are readily determined in the corresponding first overtone region. An application of quantitative monomer estimation in the near infrared is reported.