Cyclohexyl Methacrylate with Tetra (Ethylene Glycol) Dimethacrylate in Tertahydrofuran Radical Copolymerization

Abstract

Free-radical copolymerization of cyclohexyl methacrylate (CHMA) and tetra (ethylene glycol) dimethacrylate (TtEGDMA) were carried out at 60 °C in tetrahydrofuran solution in presence of 2,2-azobisisobutyronitrile. The random copolymers were prepared with nominal crosslinking ratios, X of 1, 5 and 10% mol TtEGDMA / mol CHMA. The copolymers were characterized by 13C NMR spectroscopy. The copolymers was characterized by 13C RMN analysis and determined the copolymers composition. The monomer reactivity ratios r1 (TtEGDMA) and r2 (CHMA) were determined with the linearized copolymerization equations of the Fineman–Ross methods (r1 = 1.77 and r2 = 0.48) and Kelen–Tüdös (r1 = 1.81 and r2 = 0.46). Parameters of Alfrey-Price Q1 = - 1.10 (specific activity) and e1= - 0.64 (polarity) for TtEGDMA.

Methacrylate-Based Copolymers for Polymer Optical Fibers

“…Overall, this complete material set can lead to an adjustment of the glass transition temperature and the material load-carrying capacity in both directions. [33], b [34], c [35], d [36], and e [37].…”

“…In summary, a dependence on the experimental conditions, especially on the solvent, is found in our experiment. [33], b [34], c [35], d [36], and e [37].…”