Journal ArticleDOI
Primary radical termination in polymerization: Evaluation of the characteristic constant
Pramil C. Deb,G. Meyerhoff +1 more
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In this paper, the authors derived an equation which allows determination of the classical efficiency of initiation as a function of [I]/[M]2 and also allowed a correction of Rp in handling the above equation by taking into account the small amount of monomer consumed in initiation.About:
This article is published in European Polymer Journal.The article was published on 1974-08-01. It has received 89 citations till now.read more
Citations
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Radical polymerization initiated by primary radicals with similar structure to the end radical on the polymer
TL;DR: In this paper, the rate constants of termination between small polymeric radicals such as the primary radicals are estimated to be k tST : ST = 5.2 × 10 8 l mol −1 s −1 and k tMMA : MMA = 1.1 × 108.
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Photopolymerization of Methyl Methacrylate Using N,N-Dimethylformamide–Sulfur Dioxide Complex as the Photoinitiator
TL;DR: In this paper, the authors studied the photopolymerization of MMA in visible light at 40 °C using DMF-SO2 complex as the photoinitiator and found that initiator exponent was 0.41 and monomer exponent varied between 1.12 to 1.50 depending on the nature of the solvent.
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Kinetics and Mechanism of Polymerization of Methyl Methacrylate using Selenonium Ylide as a Novel Initiator
TL;DR: In this article, the authors used diphenylselenononium 2,3,4,5-tetraphenylcyclopentadienylide (selENonium ylide) as a novel initiator.
Journal ArticleDOI
Radical Polymerization of Styrene in the Presence of Ylide
TL;DR: In this paper, the effects of β-picolinium p-chlorophenacylide on the solution polymerization of styrene initiated by α,α′-azobisisobutyronitrile (AIBN), using tetrahydrofuran (THF) as an inert solvent, were investigated at 60, 65, and 70°C.
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Effect of Very High Charge Density and Monomer Constitution on the Synthesis and Properties of Cationic Polyelectrolytes.
TL;DR: The experimental results confirm the impact of electrochemical parameters and the necessity to reconsider their inclusion in kinetic models and the need to reconsider the inclusion of Coulomb interactions, monomer association, steric effects and specific features of the monomer constitution.
References
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The mechanism and kinetics of the initiation of polymerisation by systems containing hydrogen peroxide
Journal ArticleDOI
Termination by primary radicals in vinyl polymerization
Journal ArticleDOI
The effects of termination by primary radicals on the kinetics of vinyl polymerisation
P. E. M. Allen,C. R. Patrick +1 more
TL;DR: In this article, the termination reactions of macroradicals, and the dimerisation of primary radicals, which have escaped from the initial cage, are treated as diffusion-controlled rections.
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Behavior of primary radicals in vinyl polymerization
TL;DR: In this article, the rate of initiation and termination between the growing chains and primary radicals were calculated, respectively, from the equations: ==================��¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¿¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯, where VR is the rate rate of primary radical formation and k′p the rate constant of initiation.
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Die Wahl des optimalen Verfahrens für die Bestimmung des Primärradikalabbruchs aus Geschwindigkeitsdaten
TL;DR: In this article, the authors propose a linear representation of the variable Y as a power series of X, which is obtained from the plot of Y vs. X according to the equation.