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Srivastava, Archana; Kamal, Mohsin; Kaur, Manmeet; Pandey, Saurabh; Daniel, Neeta; Chaurasia, Ajey Kumar; Pandey, Pratibha

doi:10.1023/a:1021351911039

Cited by 6 publications

(2 citation statements)

References 32 publications

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“…Concentrations of terminal radicals can be quantitatively estimated from the condition of the stationary stage of radical terpolymerization through the set of equations below

({, \begin{matrix} k_{12} P_{1} M_{2} + k_{13} P_{1} M_{3} = k_{21} P_{2} M_{1} + k_{31} P_{3} M_{1} \\ k_{21} P_{2} M_{1} + k_{23} P_{2} M_{3} = k_{12} P_{1} M_{2} + k_{32} P_{3} M_{2} \\ k_{31} P_{3} M_{1} + k_{32} P_{3} M_{2} = k_{13} P_{1} M_{3} + k_{23} P_{2} M_{3} \end{matrix})

where k ij are the reaction rate constants of the addition of radical i to monomer j , P i is the concentration of radical i , and M i is the concentration of monomer i .…”

Section: General Concept Of Living Radical Nitroxide‐mediated Terpolymentioning

confidence: 99%

Living Nitroxide‐Mediated Radical Terpolymerization: General Concept and Synthetic Possibilities

Zaremski

Plutalova

Eremeev

2016

Macro Theory & Simulations

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The general concept for nitroxide‐mediated radical terpolymerization is advanced. This concept is based on activation‐deactivation equilibria for terminal polymer‐nitroxide adducts. Depending on monomer activity and the stability of terminal nitroxide adducts, terpolymerization can be equilibrium living, quasi‐equilibrium (gradient) living, decaying living, decaying gradient, or non‐living. Expressions for the effective activation‐deactivation equilibrium constant, Kef, and the rate of terpolymerization are derived from theoretical speculations on equilibrium living and decaying living terpolymerization. For quasi‐equilibrium living terpolymerization, various types of gradient terpolymers are predicted. When activity of the active monomer M1 is, at least, one order of magnitude different from that of the two other monomers, the effective constant Kef is shown to approach K1 of the most active monomer. Experimental kinetic and equilibrium constants agree with the advanced concept for the equilibrium living terpolymerization of styrene with methyl methacrylate, and acrylonitrile in the presence of nitroxide SG1, as well as for decaying living terpolymerization in the same system in the presence of nitroxide TEMPO.

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“…Concentrations of terminal radicals can be quantitatively estimated from the condition of the stationary stage of radical terpolymerization through the set of equations below

({, \begin{matrix} k_{12} P_{1} M_{2} + k_{13} P_{1} M_{3} = k_{21} P_{2} M_{1} + k_{31} P_{3} M_{1} \\ k_{21} P_{2} M_{1} + k_{23} P_{2} M_{3} = k_{12} P_{1} M_{2} + k_{32} P_{3} M_{2} \\ k_{31} P_{3} M_{1} + k_{32} P_{3} M_{2} = k_{13} P_{1} M_{3} + k_{23} P_{2} M_{3} \end{matrix})

where k ij are the reaction rate constants of the addition of radical i to monomer j , P i is the concentration of radical i , and M i is the concentration of monomer i .…”

Section: General Concept Of Living Radical Nitroxide‐mediated Terpolymentioning

confidence: 99%

Living Nitroxide‐Mediated Radical Terpolymerization: General Concept and Synthetic Possibilities

Zaremski

Plutalova

Eremeev

2016

Macro Theory & Simulations

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“…Up to this moment, only few kinetic investigations were reported on free radical statistical terpolymerizations, whereby no good control over the monomer distribution in single polymer chains could be achieved due to the use of the uncontrolled polymerization method. [35][36][37][38][39] In addition, one example of kinetic investigations on controlled nitroxide-mediated free radical terpolymerizations was reported to result in well-defined polymers, but the monomer distribution throughout the chains was not determined. [40] As such, detailed kinetic investigations on the monomer incorporation and, thus, the monomer distribution have not been determined for living or controlled statistical terpolymerizations.…”

Section: Introductionmentioning

confidence: 99%

Kinetic Investigations on Microwave-Assisted Statistical Terpolymerizations of 2-Oxazoline Monomers

Hoogenboom¹,

Wiesbrock²,

Leenen³

et al. 2007

Aust. J. Chem.

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The microwave-assisted statistical terpolymerization of 2-oxazolines via a living cationic ring-opening polymerization mechanism is discussed. Kinetic investigations on the terpolymerizations of combinations of 2-methyl-2-oxazoline, 2-ethyl-2-oxazoline, 2-nonyl-2-oxazoline, and 2-phenyl-2-oxazoline were performed by heating separate polymerization mixtures for different predefined times. The resulting polymer solutions were analyzed by gas chromatography and size exclusion chromatography, demonstrating the living character of the statistical terpolymerizations. In addition, the monomer distribution throughout the polymer chains is discussed based on the linear first order kinetic plots of the separate monomers in the terpolymerizations. The observed differences in monomer distribution are expected to influence the polymer properties, which will be the focus of future investigations.

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New terpolymers from n-butyl acrylate, glycidyl methacrylate and tetrahydrofurfuryl acrylate: Synthesis, characterisation and estimation of reactivity ratios

et al. 2014

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Untitled

Cited by 6 publications

References 32 publications

Living Nitroxide‐Mediated Radical Terpolymerization: General Concept and Synthetic Possibilities

Living Nitroxide‐Mediated Radical Terpolymerization: General Concept and Synthetic Possibilities

Kinetic Investigations on Microwave-Assisted Statistical Terpolymerizations of 2-Oxazoline Monomers

New terpolymers from n-butyl acrylate, glycidyl methacrylate and tetrahydrofurfuryl acrylate: Synthesis, characterisation and estimation of reactivity ratios

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