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Influence of the Stereochemical Configuration on the Radical Polymerization of Methacrylic Monomers: cis- and trans-(2-Cyclohexyl-1,3-dioxan-5-yl) Methacrylates - Published online 8 September 2000 The synthesis of two new isomeric monomers, cis-(2-cyclohexyl-1,3-dioxan-5-yl) methacrylate (CCDM) and trans-(2-cyclohexyl-1,3-dioxan-5-yl) methacrylate (TCDM), is reported. The radical polymerizations of both monomers were studied to investigate the influence of the monomer configuration on the values of the propagation and termination rate constants (kp and k1). Measurements of the absolute rate constants kp and k1 were carried out with electron paramagnetic resonance techniques. The values of kp at 60 (degree)C were nearly identical for both trans and cis monomers, but the termination rate constant of the trans monomer was about three times that of the cis monomer at the same temperature./
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