Chaotic reaction waves with fast diffusion of activator

Strunin, Dmitry V.; Strunina, A. G.; Rumanov, É. N.; Мержанов, А. Г.

doi:10.1016/0375-9601(94)90219-4

Cited by 13 publications

(8 citation statements)

References 11 publications

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“…A rich variety of dynamical behavior has been observed, including planar fronts, spin modes, [3][4][5] and chaotic reaction waves. 6 The dynamics have also been studied numerically and analytically. [7][8][9] Ivleva and Merzhanov recently performed three-dimensional simulations of spin modes in cylinders.…”

Section: Introductionmentioning

confidence: 99%

The effect of reactor geometry on frontal polymerization spin modes

Pojman

Masere

Petretto

et al. 2002

Chaos: An Interdisciplinary Journal of Nonlinear Science

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Using reactors of different sizes and geometries the dynamics of the frontal polymerization of 1,6-hexanediol diacrylate (HDDA) and pentaerythritol tetraacrylate (PETAC), with ammonium persulfate as the initiator were studied. For this system, the frontal polymerization exhibits complex behavior that depends on the ratio of the monomers. For a particular range of monomers concentration, the polymerization front becomes nonplanar, and spin modes appear. By varying the reactor diameter, we experimentally confirmed the expected shift of the system to a greater number of "hot spots" for larger diameters. For square test tubes a "zig-zag" mode was observed for the first time in frontal polymerization. We confirmed the viscosity-dependence of the spin mode instabilities. We also observed novel modes in cylinder-inside-cylinder reactors. Lastly, using a conical reactor with a continuously varying diameter, we observed what may be evidence for bistability depending on the direction of propagation. We discuss these finding in terms of the standard linear stability analysis for propagating fronts. (c) 2002 American Institute of Physics.

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Section: Introductionmentioning

confidence: 99%

The effect of reactor geometry on frontal polymerization spin modes

Pojman

Masere

Petretto

et al. 2002

Chaos: An Interdisciplinary Journal of Nonlinear Science

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“…photos and discussions in [2,10]). (kink) of certain size and moving with certain velocity, where the cold unburned composition is surrounded from two sides by the hot reaction products.…”

Section: Introductionmentioning

confidence: 99%

Range of validity and intermittent dynamics of the phase of oscillators with nonlinear self-excitation

Strunin

Mohammed

2015

Communications in Nonlinear Science and Numerical Simulation

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“…As no solvent is required, less waste is produced because no solvent needs to be evaporated from the polymer, so requiring less energy. A rich variety of dynamical behaviour has been observed in the frontal polymerization process, including planar fronts, spin modes,4 and chaotic reaction waves 5. The dynamics have also been studied numerically and analytically 6, 7…”

Section: Introductionmentioning

confidence: 99%

Bistability of propagating front with spin‐mode in a frontal polymerization of trimethylopropane triacrylate

Huh

Kim

2003

Polymer International

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We have studied a nonlinear dynamic behaviour in a frontal polymerization process. Frontal polymerization is a mode of converting a monomer into a polymer via a localized reaction zone that propagates as a front. Interest in studying the dynamic behaviour of such propagating fronts is growing. Many studies focus on the spin‐mode front propagation characterized by a nonplanar front having one or more high temperature regions which move in a helical path along the axis of the reaction vessel. In this study, the bistable character of the spin‐mode induced by reaction vessel diameter has been analyzed. First, a reactor with a discontinuously varying diameter for preliminary tests, and second, a conical reactor with a continuously varying diameter have been used. We have obtained evidence of bistability of the spin‐mode front in the frontal polymerization of trimethylopropane triacrylate under certain reaction conditions. Copyright © 2003 Society of Chemical Industry

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Chaotic reaction waves with fast diffusion of activator

Cited by 13 publications

References 11 publications

The effect of reactor geometry on frontal polymerization spin modes

The effect of reactor geometry on frontal polymerization spin modes

Range of validity and intermittent dynamics of the phase of oscillators with nonlinear self-excitation

Bistability of propagating front with spin‐mode in a frontal polymerization of trimethylopropane triacrylate

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