Influence of the stereochemical configuration on the radical polymerization of methacrylic monomers:cis- andtrans-(2-cyclohexyl-1,3-dioxan-5-yl) methacrylate

Radical Polymerization of Isomeric Methacrylic Monomers: cis- and trans-(2-Phenyl-1,3-dioxan-5-yl) Methacrylate

“…The values of k p and k t determined at different temperatures in the polymerizations of CPDM and TPDM are compiled in Table 4, which also includes new values of k p and k t determined in the polymerizations of CCDM and TCDM. The values for CCDM and TCDM are higher than those previously reported 15 because our new method for correcting the baseline leads to lower values of the radical concentrations than those obtained by a simple baseline correction. Nevertheless, the conclusions 15 remain unchanged.…”

“…The values for CCDM and TCDM are higher than those previously reported 15 because our new method for correcting the baseline leads to lower values of the radical concentrations than those obtained by a simple baseline correction. Nevertheless, the conclusions 15 remain unchanged. The results in Table 4 demonstrate that the propagation rates are almost independent of the configuration of either monomer pairs, in contrast to the termination rate constants.…”

“…These results clearly show that the CPDM isomer is more reactive than the trans counterpart TPDM, as occurs in the polymerization of CCDM and TCDM methacrylate. 15 However, these results contradict those reported for the polymerization of trans-and cis/trans-4-tert-butylcyclohexyl methacrylate with cis content of 71%, which have similar polymerization rates. 21 Characterization of the Polymers.…”

“…Therefore, eq 1 can be transformed into eq 2. 15 Computer simulations of the absorbance data according to eq 2 can be used to determine A ∞ and k p /k t 1/2 . The values of k d (Table 1) for the calculations at each temperature were taken from the literature, [16][17][18][19] and those of f were determined as indicated below.…”

Radical Polymerization of Isomeric Methacrylic Monomers: cis- and trans-(2-Phenyl-1,3-dioxan-5-yl) Methacrylate

“…The values of k p and k t determined at different temperatures in the polymerizations of CPDM and TPDM are compiled in Table 4, which also includes new values of k p and k t determined in the polymerizations of CCDM and TCDM. The values for CCDM and TCDM are higher than those previously reported 15 because our new method for correcting the baseline leads to lower values of the radical concentrations than those obtained by a simple baseline correction. Nevertheless, the conclusions 15 remain unchanged.…”

“…The values for CCDM and TCDM are higher than those previously reported 15 because our new method for correcting the baseline leads to lower values of the radical concentrations than those obtained by a simple baseline correction. Nevertheless, the conclusions 15 remain unchanged. The results in Table 4 demonstrate that the propagation rates are almost independent of the configuration of either monomer pairs, in contrast to the termination rate constants.…”

“…These results clearly show that the CPDM isomer is more reactive than the trans counterpart TPDM, as occurs in the polymerization of CCDM and TCDM methacrylate. 15 However, these results contradict those reported for the polymerization of trans-and cis/trans-4-tert-butylcyclohexyl methacrylate with cis content of 71%, which have similar polymerization rates. 21 Characterization of the Polymers.…”

“…Therefore, eq 1 can be transformed into eq 2. 15 Computer simulations of the absorbance data according to eq 2 can be used to determine A ∞ and k p /k t 1/2 . The values of k d (Table 1) for the calculations at each temperature were taken from the literature, [16][17][18][19] and those of f were determined as indicated below.…”

Kinetic study of the radical polymerization behavior of N‐(1‐phenylethylaminocarbonyl)methacrylamide

“…Figure 4 shows the ESR spectrum observed during the polymerization of PEACMA with MAIB at 60 °C in DMSO, where the concentrations of PEACMA and MAIB were 1.00 mol/L and 0.10 mol/L, respectively. The observed spectrum is closely similar to those of PECMA and also some methacrylate monomers,5, 16–19 and is assignable to the propagating polymer radical (II) of PEACMA. (See Scheme .…”

Radical Polymerization of Isomeric Methacrylic Monomers: cis- and trans-(2-Phenyl-1,3-dioxan-5-yl) Methacrylate

“…The values of k p and k t determined at different temperatures in the polymerizations of CPDM and TPDM are compiled in Table 4, which also includes new values of k p and k t determined in the polymerizations of CCDM and TCDM. The values for CCDM and TCDM are higher than those previously reported 15 because our new method for correcting the baseline leads to lower values of the radical concentrations than those obtained by a simple baseline correction. Nevertheless, the conclusions 15 remain unchanged.…”

“…The values for CCDM and TCDM are higher than those previously reported 15 because our new method for correcting the baseline leads to lower values of the radical concentrations than those obtained by a simple baseline correction. Nevertheless, the conclusions 15 remain unchanged. The results in Table 4 demonstrate that the propagation rates are almost independent of the configuration of either monomer pairs, in contrast to the termination rate constants.…”

“…These results clearly show that the CPDM isomer is more reactive than the trans counterpart TPDM, as occurs in the polymerization of CCDM and TCDM methacrylate. 15 However, these results contradict those reported for the polymerization of trans-and cis/trans-4-tert-butylcyclohexyl methacrylate with cis content of 71%, which have similar polymerization rates. 21 Characterization of the Polymers.…”

“…Therefore, eq 1 can be transformed into eq 2. 15 Computer simulations of the absorbance data according to eq 2 can be used to determine A ∞ and k p /k t 1/2 . The values of k d (Table 1) for the calculations at each temperature were taken from the literature, [16][17][18][19] and those of f were determined as indicated below.…”

Kinetic study of the radical polymerization behavior of N‐(1‐phenylethylaminocarbonyl)methacrylamide

“…Figure 4 shows the ESR spectrum observed during the polymerization of PEACMA with MAIB at 60 °C in DMSO, where the concentrations of PEACMA and MAIB were 1.00 mol/L and 0.10 mol/L, respectively. The observed spectrum is closely similar to those of PECMA and also some methacrylate monomers,5, 16–19 and is assignable to the propagating polymer radical (II) of PEACMA. (See Scheme .…”

Radical Polymerization of Isomeric Methacrylic Monomers: cis- and trans-(2-Phenyl-1,3-dioxan-5-yl) Methacrylate

“…The values of k p and k t determined at different temperatures in the polymerizations of CPDM and TPDM are compiled in Table 4, which also includes new values of k p and k t determined in the polymerizations of CCDM and TCDM. The values for CCDM and TCDM are higher than those previously reported 15 because our new method for correcting the baseline leads to lower values of the radical concentrations than those obtained by a simple baseline correction. Nevertheless, the conclusions 15 remain unchanged.…”

“…The values for CCDM and TCDM are higher than those previously reported 15 because our new method for correcting the baseline leads to lower values of the radical concentrations than those obtained by a simple baseline correction. Nevertheless, the conclusions 15 remain unchanged. The results in Table 4 demonstrate that the propagation rates are almost independent of the configuration of either monomer pairs, in contrast to the termination rate constants.…”

“…These results clearly show that the CPDM isomer is more reactive than the trans counterpart TPDM, as occurs in the polymerization of CCDM and TCDM methacrylate. 15 However, these results contradict those reported for the polymerization of trans-and cis/trans-4-tert-butylcyclohexyl methacrylate with cis content of 71%, which have similar polymerization rates. 21 Characterization of the Polymers.…”

“…Therefore, eq 1 can be transformed into eq 2. 15 Computer simulations of the absorbance data according to eq 2 can be used to determine A ∞ and k p /k t 1/2 . The values of k d (Table 1) for the calculations at each temperature were taken from the literature, [16][17][18][19] and those of f were determined as indicated below.…”

Kinetic study of the radical polymerization behavior of N‐(1‐phenylethylaminocarbonyl)methacrylamide

“…Figure 4 shows the ESR spectrum observed during the polymerization of PEACMA with MAIB at 60 °C in DMSO, where the concentrations of PEACMA and MAIB were 1.00 mol/L and 0.10 mol/L, respectively. The observed spectrum is closely similar to those of PECMA and also some methacrylate monomers,5, 16–19 and is assignable to the propagating polymer radical (II) of PEACMA. (See Scheme .…”