Methacrylate Double Bonds Research Articles

Polymerization of methacrylates containing aromatic nuclei with different electron donating capacity

AbstractThe polymerization of phenyl methacrylate, benzyl methacrylate, 1‐naphthyl methacrylate, and 1‐naphthylmethyl methacrylate is investigated.Under equal conditions (temperature and initiator concentration) the polymerization rate in solution decreases with the increase of the electron donating capacity of the aromatic ring. From the temperature dependence of the overall polymerization rate constants, the overall activation energy is calculated. With the increase of the electron donating capacity of the aromatic ring, the energy increases.The results are explained by assuming a π‐complex formation between the aromatic rings and the electron accepting methacrylic double bonds.

Polymerization of methacrylates containing furan nuclei with different electron‐donor capacity

AbstractThe polymerization of furfuryl methacrylate (FMA) and carbomethoxyfurfuryl methacrylate (CMFMA) has been studied. It has been established that under equal conditions the rate of CMFMA polymerization is greater than the rate of polymerization of FMA. The temperature dependence of the rate constants showed that the polymerization of FMA is associated with a greater energy of activation.These results are explained by π‐complex formation between the furan nuclei on the one hand and the methacrylic double bonds or the growing methacrylic radicals on the other. Complex stability depends on the electron‐donor capacity of the furan nuclei.