Search Results - "Likhtman, A. E"

Understanding Constraint Release in Star/Linear Polymer Blends by Shivokhin, M. E, van Ruymbeke, E, Bailly, C, Kouloumasis, D, Hadjichristidis, N, Likhtman, A. E

“…In this paper, we exploit the stochastic slip-spring model to quantitatively predict the stress relaxation dynamics of star/linear blends with well-separated…”
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Entangled Polymers: Constraint Release, Mean Paths, and Tube Bending Energy by Read, D. J, Jagannathan, K, Likhtman, A. E

“…Constitutive equations for entangled polymer melts and solutions are often derived from single chain tube models. Instead of keeping the chain coordinates,…”
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Neutron-Mapping Polymer Flow: Scattering, Flow Visualization, and Molecular Theory by Bent, J., Hutchings, L. R., Richards, R. W., Gough, T., Spares, R., Coates, P. D., Grillo, I., Harlen, O. G., Read, D. J., Graham, R. S., Likhtman, A. E., Groves, D. J., Nicholson, T. M., McLeish, T. C. B.

“…Flows of complex fluids need to be understood at both macroscopic and molecular scales, because it is the macroscopic response that controls the fluid…”
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Small angle neutron scattering observation of chain retraction after a large step deformation by BLANCHARD, A, GRAHAM, R. S, HEINRICH, M, PYCKHOUT-HINTZEN, W, RICHTER, D, LIKHTMAN, A. E, MCLEISH, T. C. B, READ, D. J, STRAUBE, E, KOHLBRECHER, J

“…The process of retraction in entangled linear chains after a fast nonlinear stretch was detected from time-resolved but quenched small angle neutron scattering…”
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Molecular observation of contour-length fluctuations limiting topological confinement in polymer melts by Wischnewski, A, Monkenbusch, M, Willner, L, Richter, D, Likhtman, A E, McLeish, T C B, Farago, B

“…In order to study the mechanisms limiting the topological chain confinement in polymer melts, we have performed neutron-spin-echo investigations of the…”
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Finite- N effects for ideal polymer chains near a flat impenetrable wall by Matsen, M. W., Kim, J. U., Likhtman, A. E.

“…This paper addresses the statistical mechanics of ideal polymer chains next to a hard wall. The principal quantity of interest, from which all monomer…”
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Measuring and Predicting the Dynamics of Linear Monodisperse Entangled Polymers in Rapid Flow through an Abrupt Contraction. A Small Angle Neutron Scattering Study by Graham, R. S, Bent, J, Hutchings, L. R, Richards, R. W, Groves, D. J, Embery, J, Nicholson, T. M, McLeish, T. C. B, Likhtman, A. E, Harlen, O. G, Read, D. J, Gough, T, Spares, R, Coates, P. D, Grillo, I

“…Small-angle neutron scattering measurements on a series of monodisperse linear entangled polystyrene melts in nonlinear flow through an abrupt 4:1 contraction…”
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Theory of Microphase Separation in Block Copolymer/Homopolymer Mixtures by Likhtman, A. E, Semenov, A. N

“…We present a theory of microphase separation of a diblock copolymer A fN B(1 - f ) N and homopolymer hB blend in the strong segregation limit (χN ≫ 10), where…”
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Relaxation of surface tension in the free-surface boundary layer of simple Lennard-Jones liquids by Lukyanov, A V, Likhtman, A E

“…In this paper we use molecular dynamics to answer a classical question: how does the surface tension on a liquid/gas interface appear? After defining surface…”
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Molecular observation of constraint release in polymer melts by Zamponi, M, Wischnewski, A, Monkenbusch, M, Willner, L, Richter, D, Likhtman, A E, Kali, G, Farago, B

“…The dynamics of binary polymer blends of few labeled long chains in successively shorter matrix chains has been investigated by neutron spin echo (NSE)…”
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Molecular observation of contour length fluctuations in polymer melts by Wischnewski, A, Zamponi, M, Monkenbusch, M, Willner, L, Pyckhout-Hintzen, W, Richter, D, Likhtman, A.E, McLeish, T.C.B, Farago, B

“…The close comparison of linear rheology data of some long-chain polymer melts with the reptation model indicates the existence of additional degrees of freedom…”
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Theory of Surface Deformations of Polymer Brushes in Solution by Likhtman, A. E, Anastasiadis, S. H, Semenov, A. N

“…The excess free energy of small-amplitude deformations of a wet “parabolic” brush consisting of polymer chains attached to a solid plane by one end is…”
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Single-Chain Slip-Link Model of Entangled Polymers:  Simultaneous Description of Neutron Spin−Echo, Rheology, and Diffusion by Likhtman, Alexei E

“…The model presented in this paper describes simultaneously three different experimental techniques applied to different monodisperse polymer melts:  neutron…”
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Flow-induced orientation and stretching of entangled polymers by Marrucci, Giuseppe, Ianniruberto, Giovanni

“…A single–mode constitutive equation is proposed which accounts, in a very simple way, for the most important feature of the molecular theory for entangled…”
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Quantitative Theory for Linear Dynamics of Linear Entangled Polymers by Likhtman, Alexei E, McLeish, Tom C. B

“…We present a new quantitative development of the reptation picture of de Gennes−Doi−Edwards. It is well-known that the original reptation theory is unable to…”
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Depolarized light scattering from critical polymer blends by Semenov, Alexander N., Likhtman, Alexei E., Vlassopoulos, Dimitris, Karatasos, Kostas, Fytas, George

“…Depolarized light scattering of binary polymer blends in disordered state near the demixing critical point is considered both theoretically and experimentally…”
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Simple constitutive equation for linear polymer melts derived from molecular theory: Rolie–Poly equation by Likhtman, Alexei E., Graham, Richard S.

“…Recently we developed a theory for fast flows of entangled polymer melts which includes the processes of reptation, convective and reptation-driven constraint…”
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Microscopic theory for the fast flow of polymer melts by Likhtman, AE, Milner, ST, McLeish, TC

“…We develop a theory of fast flows of entangled polymer melts incorporating the process of convective constraint release (CCR) as a local rearrangement of the…”
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Theory of secondary domain structures in disordered multiblock copolymers by SEMENOV, A. N, LIKHTMAN, A. E

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Theory of surface deformations of polymer brushes in solution by LIKHTMAN, A. E, ANASTASIADIS, S. H, SEMENOV, A. N

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