Thermal properties of thermoplastic polymers: Influence of polymer structure and procedure of radical polymerization

摘要

Experimental data prove a significant mutual interference between the chemical nature of the monomer and the particularities of the radical polymerization procedure which influences the thermal decomposition (depropagation) of the corresponding polymer. Results are presented for polystyrene, poly(-methyl methacrylate), and poly(α-methylene-γ-valerolactone) which were made via different radical polymerization techniques (thermally self-initiated bulk polymerization at 80 ℃, photoinitiated bulk and aqueous heterophase polymerization at 25 ℃). Also, experimental data are presented after thermally annealing the polymers at 200 and 300 ℃.