Fluctuation-Induced Anisotropic Pattern Relaxation in Critical Polymer Blends
- 6 May 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 76 (19) , 3586-3589
- https://doi.org/10.1103/physrevlett.76.3586
Abstract
A new relaxation process has been identified in binary polymer blends near the critical point, by dynamic depolarized light scattering. It is attributed to the formation of 3D anisotropic patterns of critical order parameter fluctuations, accounted for by fluctuation-induced second order scattering. This new process, which is absent in small molecule binary mixtures, is shown to be a universal characteristic of polymer blends.Keywords
This publication has 20 references indexed in Scilit:
- Phase transitions in polymer blends and block copolymer melts: Some recent developmentsPublished by Springer Nature ,2005
- Nature of Crossover between Ising-like and Mean-Field Critical Behavior in Fluids and Fluid MixturesPhysical Review Letters, 1995
- Phase Separation and Glass Transition Intervention in a Polymer BlendEurophysics Letters, 1995
- Computer simulation analysis of microstructure formation in monomer and polymer blends involving a glassy componentMacromolecular Theory and Simulations, 1994
- Critical dynamics and phase-separation kinetics in dynamically asymmetric binary fluids: New dynamic universality class for polymer mixtures or dynamic crossover?The Journal of Chemical Physics, 1994
- Critical anomaly of complex shear modulus in polymer solutions: Viscoelastic suppression of order parameter fluctuation due to dynamic asymmetryPhysical Review Letters, 1993
- Critical behavior in a binary polymer blend as studied by static and dynamic light scatteringThe Journal of Chemical Physics, 1992
- Entropy-induced frozen morphology in unstable polymer blendsMacromolecules, 1992
- Static and dynamic crossover in a critical polymer mixturePhysical Review Letters, 1990
- Dynamical Scaling for Polymers in Theta SolventsMacromolecules, 1977